Hi, I was having difficulty with this question in particualr involving identifyi

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Hi, I was having difficulty with this question in particualr involving identifying the population, sample, p, p hat etc. I have answered the questions to the best of my abilities, however am not sure if they are correct and would appreciate any help in verifying them. I have bolded my answers for each of the following questions. Thank you very much!

For the situation below identify the population and the sample and explain what p and p? represent if appropriate and what the value of p? is. Would you trust a confidence interval for the true proportion based on these data? Explain briefly why or why not.

A marketing analyst conducts a large survey of her customers to find out how much money they plan to spend at the company website in the next 6 months. The average amount reported from the 520 respondents is $147.18.

What is the population?

A. All marketing analysts

B. All customers of the marketing analyst

C. All marketing analyst websites

D. All the websites of the marketing analyst customers

Identify the sample. Choose the correct answer below.

A. All the customers to whom the survey was sent

B. The 520 customers who responded to the survey

C. The average amount reported by the 520 customers who responded

D. The 520 amounts that were recorded from the survey

Explain what p represents. Choose the correct answer below.

A. The average amount that will be spent by the marketing analyst's customers

B. This situation is about a mean, not a proportion

C. The proportion of the 520 respondents who will spend more than $147.18

D. The proportion of all customers who will spend more than $147.18

Explain what p? represents. Choose the correct answer below.

A. This situation is about a mean, not a proportion.

B. The proportion of all customers who will spend more than $147.18.

C. The proportion of the 520 respondents who will spend more than $147.18.

D. The average amount that will be spent by the marketing analyst's customers.

What is the value of p??

A. The proportion is 147.18

B. This situation is about a mean, not a proportion.

C. The proportion is not given in the information.

D. The proportion is 520.

Would you trust a confidence interval for the true proportion based on these data?

A. No, beause the sample is voluntary, and may be biased.

B. Yes, because this sample seems to meet all the conditions.

C. No, because the 10% condition is violated.

D. This situation is about a mean, not a proportion.

Explanation / Answer

A. What is the population?

A. The 520 customers who responded to the survey.

B. Identify the sample.

B. The 520 customers who responded to the survey.

C. Explain what p represents.

C This sitaution is about the mean and not a proportion.

D. What is the value of p?

D. The situation is about a mean, not a proportion.

E. Would you trust a confidence interval for the true proportion based on these data?

E. Yes, because this sample seems to meet all the conditions.

Confidence interval is for mean as well as for proportion.

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