Hypothesis Testing Answers

The hypothesis represents the statistical claim that the company’s tablet computers have an average recharge time of less than 3 hours.

What is the alternative hypothesis,, for this situation?

Which type of significance test should be used for this situation?✔ a left-tailed testa two-tailed testa right-tailed test

The speed limit on a road is 45 mph. You want to clock the speed of a random sample of cars to test the hypothesis that the average speed of cars is greater than the speed limit. What kind of test would you use?a left-tailed testa two-tailed test✔ a right-tailed test

= ⇒ -2.5

Based on the z-statistic of –2.5 for the sample data, should the null hypothesis be rejected?

Based on the hypothesis test, what conclusion can you draw about the statistical claim that the average recharge time of the tablet computers is 3 hours?The claim should be accepted.✔ The claim should be rejected.There is not enough evidence to reject the claim.

What is the null hypothesis, , for this situation?

You have reason to believe that there are actually fewer raisins in each box than the company claims. Your alternative hypothesis, , would be

You have reason to believe that there are actually more raisins in each box than the company claims. Your alternative hypothesis, , would be