4) [ 6 pts. ] Iguana-aid corporation claims theirs soft drinks contain 345 mg of high fructose corn syrup. In a sample of 25 cans of iguana-aid, the mean was 320 mg HFCS and the standard deviations was 20 mg. Test the null hypothesis that the company's claim is correct. = .05.

Provide the information indicated below: a) Statistical Hypotheses

b) Decision Rule

c) Calculations

d) Decision

e) Interpretation

5) [ 6 pts. ] Suppose that local police are interested in determining whether the average speed of cars through a local intersection exceeds the local speed limit of 40 mph. They measure the speed (in mph) for a sample of 10 randomly selected cars passing through that intersection and collect the following data: 45, 59, 53, 50, 45, 49, 53, 38, 62, 73 Showing all necessary computations, conduct the most appropriate hypothesis test, at = .05, to most effectively address whether the average speed of cars in this intersection exceeds 40 mph.

Provide the information indicated below:

a) What must you assume when applying the test in this case?

b) Statistical Hypotheses

c) Decision Rule

d) Calculations

e) Decision

f) Interpretation