# I need help with question 5 and 6 using the information provided in 1-4

**Question description**

1) Determine

a question that you would like to use to survey a population. Keep the

situation binomial and make sure the question has a yes or no answer.

Question: Is your favorite sport

football?

2) What population are you going to study? High School male

3) Explain how will you choose a representative sample?

Controls were placed on the types of respondents (High School male)

chosen for the survey in terms of quotas and we specifically looked for a specific group of people to

interview to make sure the sample is correctly balanced.

4) Administer your survey question to the sample

that you described in part 3 and record your results.

a) How many were in your sample? n = __40__

b) How may responded “yes”? x = __31__

c) What is your sample proportion? = __.78__

5)

a)

Calculate and interpret a CI_{90} based on your sample data. What is

your error?

b) Calculate and interpret a CI_{99} based on your sample data. What is

your error?

c) Explain why the confidence intervals are different in a and b above.

6)

a) If you wanted a CI_{90} with an error of 5% how many people would

you have needed to survey?

b) If you wanted a CI_{99} with an error of 5% how many people would

you have needed to survey?

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