Solve the problem.An educator wanted to look at the study habits of university students. As part of the research, data was collected for three variables – the amount of time (in hours per week) spent studying, the amount of time (in hours per week) spent playing video games and the GPA – for a sample of 20 male university students. As part of the research, a 95% confidence interval for the average GPA of all male university students was calculated to be: (2.95, 3.10). Which of the following statements is true?

Solve the problem.It is desired to estimate the average time it takes Statistics students to finish a computer project to within two hours at 90% reliability. It is estimated that the standard deviation of the times is 14 hours. How large a sample should be taken to get the desired interval?

Solve the problem.Which statement best describes a parameter?

Solve the problem.Laura wants to start an IRA that will have $500,000 in it when she retires in How much should she invest monthly in her IRA to do this if the interest is 3% compounded monthly?

A cream contains 18,000 mg of salicylic acid, 0.004 kg of glycerin, and 250,000 µg of vitamin E, with enough cream base to make a total of 0.12 kg. How many grams of cream base are needed?

If a solution of acetaminophen totals 0.75 L in volume, how many cc does this represent?

 Of all of the types of beer, stouts should have the tallest head when poured, about one inch.

Which of the following is NOT a vodka cocktail?

Cocktail napkins should never be used on a table with no linens.

At what blood alcohol concentration is a person considered legally intoxicated?