Question

In: Statistics and Probability

A survey of 250 households showed 96 owned at least one snow blower. Find a point...

A survey of 250 households showed 96 owned at least one snow blower. Find a point estimate for​ p, the population proportion of households that own at least one snow blower.

Solutions

Expert Solution

Solution:

Given:

n = sample size = number of households = 250

x =Number of households owned at least one snow blower = 96

We have to find the point estimate for​ p, the population proportion of households that own at least one snow blower.

Sample proportion is an unbiased estimator of population proportion, thus Sample proportion is a  point estimate for​ p.

Thus

Thus the point estimate for​ p, the population proportion of households that own at least one snow blower is 0.384


Related Solutions

(2) A survey of households in a small town showed that in 500 of 2,000 sampled...
(2) A survey of households in a small town showed that in 500 of 2,000 sampled households, at least one member attended a town meeting during the year. What is the 95% confidence interval for the proportion of households represented at a town meeting?
A national survey of heads of households showed the percentage of those who asked for a...
A national survey of heads of households showed the percentage of those who asked for a raise and the percentage who got one. According to the survey, of the women interviewed, 26% had asked for a raise, and of those women who had asked for a raise, 45% received the raise. Suppose a woman is randomly selected, then: (a) Find P (woman did not ask for a raise). (b) Find P (woman asked for raise and received raise). You are...
Does it pay to ask for a raise? A national survey of heads of households showed...
Does it pay to ask for a raise? A national survey of heads of households showed the percentage of those who asked for a raise and the percentage who got one. According to the survey, of the women interviewed, 26% had asked for a raise, and of those women who had asked for a raise, 45% received the raise. If a woman is selected at random from the survey population of women, find the following probabilities. (Enter your answers to...
A recent survey of 200 households in the United States showed that 8 had a single...
A recent survey of 200 households in the United States showed that 8 had a single male as the head of household. A survey of 150 households in Canada showed that 5 had a single male as the head of household. At α =.05, can it be concluded that the proportion in the two countries is different?
A) In​ 1997, a survey of 820 households showed that 137 of them use​ e-mail. Use...
A) In​ 1997, a survey of 820 households showed that 137 of them use​ e-mail. Use those sample results to test the claim that more than​ 15% of households use​ e-mail. Use a 0.05 significance level. Use this information to answer the following questions. What is the​ P-value? B) In a study of 420,149 cell phone​ users, 115 subjects developed cancer of the brain or nervous system. Test the claim of a somewhat common belief that such cancers are affected...
In a recent survey of 4276 randomly selected households showed that 3549 of them had telephones....
In a recent survey of 4276 randomly selected households showed that 3549 of them had telephones. Using these results, construct a 99% confidence interval estimate of the true proportion of households with telephones. Use the PANIC acronym
In? 1997, a survey of 840 households showed that 147 of them use? e-mail. Use those...
In? 1997, a survey of 840 households showed that 147 of them use? e-mail. Use those sample results to test the claim that more than? 15% of households use? e-mail. Use a 0.05 significance level. Use this information to answer the following questions. a. Which of the following is the hypothesis test to be? conducted? b. What is the test? statistic? c. What is the? P-value? d. What is the? conclusion? There is not sufficient evidence to support the claim...
In​ 1997, a survey of 860 households showed that 161 of them use​ e-mail. Use those...
In​ 1997, a survey of 860 households showed that 161 of them use​ e-mail. Use those sample results to test the claim that more than​ 15% of households use​ e-mail. Use a 0.05 significance level. What is the P-Value?
A survey of ten households showed the following number of TV sets per household. 1, 3,...
A survey of ten households showed the following number of TV sets per household. 1, 3, 2, 1, 1, 2, 0, 2, 1, 2 a. Find the mean, variance and standard deviation for this sample of ten households b. Construct a 95% confidence interval for the population mean number of TV sets per household. c. Test if the population mean number of TV sets per household is 2.
In 1997, a survey of 840 households showed that 131of them use e-mail. Use those sample...
In 1997, a survey of 840 households showed that 131of them use e-mail. Use those sample results to test the claim that more than 15% of households use e-mail. Use a 0.05 significance level. Use this information to answer the following questions.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT