Question

1) NASA is conducting an experiment to find out the fraction of people who black out at G forces greater than 6. In an earlier study, the population proportion was estimated to be 0.43.

How large a sample would be required in order to estimate the fraction of people who black out at 6 or more Gs at the 80% confidence level with an error of at most 0.04? Round your answer up to the next integer.

2) Consider the value of t such that 0.025 of the area under the curve is to the left of t.

Assuming the degrees of freedom equals 11, select the t value from the t table.

3)The mean monthly food budget for 44 residents of the local apartment complex is $617. What is the best point estimate for the mean monthly food budget for all residents of the local apartment complex?

Answer 1

1.