Out of 1,068 fourth down situations in the National Football League (NFL), 959 times a team punted when, statistically speaking, they should have gone for the first down. Estimate at 99% confidence the percent of the time teams should go for the first down in all such situations. 10. Find the correct z-score or t-score. Sketch the appropriate bell curve. 11. Calculate the standard error. 12. Calculate the margin of error. 13. Calculate the interval. 14. Interpret your results in the context of the problem.

As the newly hired manager of a company that provides cell phone service, you want to determine the percentage of adults in your state who live in a household with cellphones and no land-line phones. How many adults must you survey? Assume that you want to be 90% confident that the sample percentage is within four percentage points of the true population percentage.Assume that nothing is known about the percentage of adults who live in a household with cell phones and no land-line phones.   Solve the previous question if assuming that a recent survey suggests that about 92% of adults live in a household with cell phones and no land-line phones (based on data from a survey).

Suppose a random sample of 5804 physicians in Colorado showed that 3145 provided at least some charity care. Let p represent the proportion of all Colorado physicians who provide some charity care. Find a point estimate for p. Round your answer to four decimal places.

d. Give a 95% interval estimate of the number of fatal accidents per 1000 licenses in a city where 15% of the licensed drivers are under 21.

Please explain. I am very lost ):