Your questions about used swimming pools for sale

Regression Problem- Confim my Anwers Please?

Please see the below and my answers– please let me know if you disagree and also if you know the answers to the 2 questions I don’t. Any help is greatly appreciated.

PoolVac, Inc. manufactures and sells a single product called the “Sting Ray,” which is a patent-protected automatic cleaning device for swimming pools. PoolVac’s Sting Ray accounts for 65 percent of total industry sales of automatic pool cleaners. Its closest competitor, Howard Industries, has captured 18 percent of the market.

Using the last 26 months of its sales data, PoolVac wishes to estimate demand for its Sting Ray. Demand for Sting Rays is specified to be a linear function of its price (P), average income for households that have swimming pools in the U.S (MAVG) and the price of the competing pool cleaner sold by Howard Industries (PH). The general linear form of the demand function

Qd = a + b P + c MAVG + d PH.

The attached computer printout presents the regression output from 26 observations (monthly data) on the price charged for a Sting Ray (P), average income of households with pools (MAVG), and the price Howard industries charged for its pool cleaner (PH).
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The printout of part of regression output from Minitab for the empirical demand is below:

Regression Analysis: Q versus P, MAVG, PH

Predictor Coef SE Coef T P
Constant 2728.8 531.7 5.13 0.000
P -10.758 1.330 -8.09 0.000
MAVG 0.021420 0.009452 2.27 0.034
PH 3.166 1.344 2.36 0.028

S = 73.0546 R-Sq = 96.6% R-Sq(adj) = 96.2%

Analysis of Variance

Source DF SS MS F P
Regression 3 3379846 1126615 211.10 0.000
Residual Error 22 117414 5337
Total 25 3497260

Source DF Seq SS
P 1 3327368
MAVG 1 22878
PH 1 29600

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1. An estimated demand equation for PoolVac is:
Qd = 2728.8-10.758P+0.021420M+3.166Ph

2. Evaluate the statistical significance of the three estimated slope parameters using a significance level of .05 or 5 percent (you can either use p-values or do a t-test).Please, explain how you decided each parameter was statistically significant or not.

Since the P values of all 3 variables are within the 5% confidence interval, each variable should be considered as staristically significant in determining the demand of the pool vacuums.

3. What is the exact level of statistical significance for estimated slope parameters on price, average income of household and price of related good? Please, explain how you know.

We should look at the P value for each of the slope parameters and in doing so, we find that price is 100% significant, average income (Mavg) is 96.6% (100-.034) and price of competition (Ph) is 97.2% significant (100-.028).

4. Discuss the appropriateness and/or interpretations of the algebraic signs of the three slope parameters, based on your theoretical expectations. Interpret the numerical values of the three slope parameters in the context of this regression.

5. Now evaluate the overall fit of the estimated (sample) regression equation to the data.

a. What percentage of variability in Qd (linear) is explained by a model? Does it indicate a good overall fit? Please, explain.

b. Verify whether the overall regression equation is statistically significant, another words, verify the goodness of overall fit .What is the exact level of significance for the entire regression equation?

Looking at the F stat which is 211.1, we can say the overall regression equation is significant since the absolute value is large. Also, the P value is 0 so there is no chance that this regression equation doesn’t explain the relationship between the given variables and quantity demanded.

Does my abusive father have a case?

I’ll try and keep this as brief as possible, but I want to make sure I give enough detail…

I am 20 years old. My father has been verbally abusive to my mother and family my whole life. He, literally, yells over spilled milk. No exaggeration. He’s controlling, neglectful, selfish, and uncaring. And he has been completely cared for. He used to get a hair cut every 6 weeks, he had a supply of deodorant, toothpaste, shampoo, soap with 4+ of each – while me, my siblings, and my mom, would go weeks or months without these things. He would also buy himself expensive clothing, cameras, computers, etc, and throw a fit over school fees, supplies, and clothes.

He has also used intimidation through property violence as a form of physical abuse. There are holes punched in walls, broken chairs, etc.

I recently remembered, a month ago, as I was trying to remember things from my childhood, that he was physically abusive to me. He would throw things at me, throw me, jerk me around, full at my hair, grab my neck and throat, kick me, and hold me under water at swimming pools to point of choking.

I have a very strong feeling, for various reasons, that he sexually abused me as a child as well, though I can’t remember it.

My mother has also detailed how he basically raped her throughout the marriage. I can, sadly, attest to this, as I have found a drawer with condoms in it, I have heard them at night, and they never hug, kiss, hold hands, date – etc. Most of the time he yells at her and has her in tears.

In January 2009, my family moved into my mother’s parent’s home while her parents were serving a religious mission. My father put up a fit about this and didn’t come over till 4 days after. We put our home up for sale and are still living in this home. That whole year he was putting up an act, saying he was changing. He would buy things for my siblings, take them to places, hang out with them and so on. He also did the laundry (so very badly). Yet he was still mean and controlling

In September 2009, my mother kicked my father out of the home. He moved back to our old home and took it off the market. My younger three siblings visited him 2 – 4 times a week. Yet before that, even when he was pretending to be super dad, he spent minimal time with them, and before 2009, he avoided spending any time with them. He didn’t want to play with them, drive them places, buy them ANYTHING.

Then my siblings started acting secretive. They said weird things, treated us differently, and so on. Finally, In December 2009, my dad came over and declared “the kids want to live with me” he packed up EVERYTHING (in one day) that belonged to them or the family. He took TV’s, computers, furniture, etc. He only left cutlery, cooking-ware, and things that explicitly belonged to my grandparents or Me, my brother (18 years old) or my mom.

My siblings wouldn’t visit my mom after that. My mom, within about 2 weeks, tried to get a mediator set up. There was an appointment set right before the holidays to try and get shared parent time for the holidays. My dad cancelled, saying it cost too much money and he couldn’t afford it. My mom told him it was the law that parent time is shared, so she finally convinced him to share the two weeks of Christmas vacation. He managed to shave off as much as he could of her time with my siblings, keeping them longer into her time, taking my sister (15) out 3 – 5 times to do who knows what for 2 – 4 hours at a time and taking them all back 2 – 3 days earlier than was agreed on.

My mom got a lawyer during this time and in early January served him divorce papers. He must have shown the papers to my siblings, because my sister (15) and my brother (13) both called her that night crying asking why she was ruining everything and taking them away from their father. (Though no custody had been arranged yet). They continued to stay with their father.

My mom had another mediation set up for early January. My dad cancelled like two days before, saying he couldn’t afford it because she “made him” get a lawyer, which was expensive.

Throughout January and early February, my two siblings (15 and 13) never visited. My mom texted and called them every night and tried to communicate with them as much as she could, and my youngest sister (11) visited just about every weekend. Though she often came over in tears and was terrified of staying too long (into Sunday morning, for example) because they would get mad at her.

Finally there was a temporary custody hearing in February. My mother had been getting affidavits from friends and relatives and my dad had been doing likewise saying why they were a good parent, etc. etc.

Well, (almost) totally out of the blue, my dad had suggested in his affidavit that I was physically and verbally abusive to my siblings, and that they were scared of me and that this was the reason he took them out of the house. This was a flat-out lie, but the reason it wasn’t completely o

What do the Saudis think of British Muslim’s article on Saudi Arabia?

http://entertainment.timesonline.co.uk/tol/arts_and_entertainment/books/book_extracts/article1685726.ece

The newspapers’ extracts from the link above.

”
HOW A BRITISH JIHADI SAW THE LIGHT.
Ed Hussain, once a proponent of radical Islam in London, tells how his time as a teacher in Saudi Arabia led him to turn against extremism

During our first two months in Jeddah, Faye and I relished our new and luxurious lifestyle: a shiny jeep, two swimming pools, domestic help, and a tax-free salary. The luxury of living in a modern city with a developed infrastructure cocooned me from the frightful reality of life in Saudi Arabia.

My goatee beard and good Arabic ensured that I could pass for an Arab.

But looking like a young Saudi was not enough: I had to act Saudi, be Saudi. And here I failed.

My first clash with Saudi culture came when, being driven around in a bulletproof jeep, I saw African women in black abayas tending to the rubbish bins outside restaurants, residences and other busy places.

“Why are there so many black cleaners on the streets?” I asked the driver. The driver laughed. “They’re not cleaners. They are scavengers; women who collect cardboard from all across Jeddah and then sell it. They also collect bottles, drink cans, bags.”

“You don’t find it objectionable that poor immigrant women work in such undignified and unhygienic conditions on the streets?”

“Believe me, there are worse jobs women can do.”

Though it grieves me to admit it, the driver was right. In Saudi Arabia women indeed did do worse jobs. Many of the African women lived in an area of Jeddah known as Karantina, a slum full of poverty, prostitution and disease.

A visit to Karantina, a perversion of the term “quarantine”, was one of the worst of my life. Thousands of people who had been living in Saudi Arabia for decades, but without passports, had been deemed “illegal” by the government and, quite literally, abandoned under a flyover.

A non-Saudi black student I had met at the British Council accompanied me. “Last week a woman gave birth here,” he said, pointing to a ramshackle cardboard shanty. Disturbed, I now realised that the materials I had seen those women carrying were not always for sale but for shelter.

I had never expected to see such naked poverty in Saudi Arabia.

At that moment it dawned on me that Britain, my home, had given refuge to thousands of black Africans from Somalia and Sudan: I had seen them in their droves in Whitechapel. They prayed, had their own mosques, were free and were given government housing.

Many Muslims enjoyed a better lifestyle in non-Muslim Britain than they did in Muslim Saudi Arabia. At that moment I longed to be home again.

All my talk of ummah seemed so juvenile now. It was only in the comfort of Britain that Islamists could come out with such radical utopian slogans as one government, one ever expanding country, for one Muslim nation. The racist reality of the Arab psyche would never accept black and white people as equal.

Standing in Karantina that day, I reminisced and marvelled over what I previously considered as wrong: mixed-race, mixed-religion marriages. The students to whom I described life in modern multi-ethnic Britain could not comprehend that such a world of freedom, away from “normal” Saudi racism, could exist.

Racism was an integral part of Saudi society. My students often used the word “nigger” to describe black people. Even dark-skinned Arabs were considered inferior to their lighter-skinned cousins. I was living in the world’s most avowedly Muslim country, yet I found it anything but. I was appalled by the imposition of Wahhabism in the public realm, something I had implicitly sought as an Islamist.

Part of this local culture consisted of public institutions being segregated and women banned from driving on the grounds that it would give rise to “licentiousness”. I was repeatedly astounded at the stares Faye got from Saudi men and I from Saudi women.

Faye was not immodest in her dress. Out of respect for local custom, she wore the long black abaya and covered her hair in a black scarf. In all the years I had known my wife, never had I seen her appear so dull. Yet on two occasions she was accosted by passing Saudi youths from their cars. On another occasion a man pulled up beside our car and offered her his phone number.

In supermarkets I only had to be away from Faye for five minutes and Saudi men would hiss or whisper obscenities as they walked past. When Faye discussed her experiences with local women at the British Council they said: “Welcome to Saudi Arabia.”

After a month in Jeddah I heard from an Asian taxi driver about a Filipino worker who had brought his new bride to live with him in Jeddah. After visiting the Balad shopping district the couple caught a taxi home. Some way through their journey the Saudi driver complained that the car was not working properly and perhaps the man
@trancinguy. You wrote: “I heard your queen mum likes to invade countries and steal its wealth..”
You assume I am from Uk. Contrarily, I am from Ireland, a country that was once invaded by the British and oppressed by its government. The Irish lost more than lands and wealth to Britain, but their lives as well. The Irish not only lost their children, also their wives and daughters to overseas brothels. Stolen Irish children and women were forcibly deported to foreign countries, many never seeing their families again.

Am I being unfair about a financial matter with my husband?

I sold a house when I got married and moved into my husband’s house. A year later we bought a house together and used the money from the sale of the house I sold before we got married as a down payment. At that time my husband said he would pay me back half of the down payment when he sold his house. That was over a year ago. My husband finally sold his house and made a considerable profit. I asked him to re-pay me for half of the down payment on our current house and now he’s mad at me. He says I agreed to spend the money on a swimming pool for our current house. I’m pretty sure I’d remember making that agreement. Even after repaying me, he still has enough money for a swimming pool but he’s still mad.

I agree with all of you that say it’s not “my” money or “his” money but “our” money but my husband doesn’t want to work our finances that way. He wants to keep everything seperate.

Also, now that he’s mad at me he wants me to pay half the mortgage and expenses for the house. He makes a lot more than I do so in the past I’ve paid for travel, extra things around the house, groceries, meals at restaurants, dry cleaning, clothing for both of us, pet expenses and anything else that he didn’t want to pay for. I thought things were fairly evenly split, but he thinks its unfair and wants it to change if he repays the down payment. I feel like I’m being treated like a roommate and not his wife.

Please give me your honest opinion. I don’t want to be unfair but an agreement is an agreement and I think he should stick to what he previously agreed to do.
Wendy, he remembers agreeing to repaying me, but says I changed the agreement later. I didn’t get in writing because he’s my spouse and I thought I could trust him. And, yes, according to him, this is going to cause us to get a divorce.
tweety, I agree. We need counseling. He agreed to go to counseling a year ago over another matter and now he refuses to go.
Cph1918 and mom of 3: We’ve talked about how we should split things 50/50 many times. He wants to be able to spend his money how he wants and he doesn’t want to have a written plan or a budget. I’m on his checking account but he doesn’t want me writing any checks or using his account so I don’t. He doesn’t want a joint account.

I’ve talked to him about how I feel like a roommate but he gets mad and storms out and doesn’t want to discuss it when he calms down.

I feel petty for risking my marriage over $$$ but I want to do what is fair for both of us.

plz solve few maths questions for me..?

1. 4 cisterns are capable of holding 72, 24, 56 and 120 litres respectively. what is the capacity of the greatest vessel which can be used to fill them exactly?
2. a veranda 24 m. wide and 32 m. long has to be paved with slabs. only square slabs can be used. what is the least no. of slabs that can be used?
3. A man brought 50 fire crackers at sale for rs. 470. He sells 15 at rs. 8 each and remaining at Rs. 10 each. what was the gain or loss %.
4. By selling 45 oranges for Rs. 160 a ma looses 20%. how many should he sell for Rs. 112 to gain 20% at the whole?
5. the greatest distance across a circular swimming pool is 10.5m. find the circumference of the pool.

plz… solve them else my teacher will eat me up…..