If you have a chance please answer as many as possible, thankyou and I really appreciate your help experts!
Question 6 2 pts
A scientist claims that the mean gestation period for a fox is51.5 weeks. If a hypothesis test is performed that rejects the nullhypothesis, how would this decision be interpreted?
| The evidence indicates that the gestation period is less than51.5 weeks |
| There is enough evidence to support the scientist’s claim thatthe gestation period is 51.5 weeks |
| There is not enough evidence to support the scientist’s claimthat the gestation period is 51.5 weeks |
| There is not enough evidence to support the scientist’s claimthat the gestation period is more than 51.5 weeks |
Flag this Question
Question 7 2 pts
A marketing organization claims that less than 15% of itsemployees are paid minimum wage. If a hypothesis test is performedthat fails to reject the null hypothesis, how would this decisionbe interpreted?
| There is sufficient evidence to support the claim that lessthan 15% of the employees are paid minimum wage |
| There is not sufficient evidence to support the claim that lessthan 15% of the employees are paid minimum wage |
| There is not sufficient evidence to support the claim that morethan 15% of the employees are paid minimum wage |
| There is sufficient evidence to support the claim that 15% ofthe employees are paid minimum wage |
Flag this Question
Question 8 2 pts
A sprinkler manufacturer claims that the average activatingtemperatures is at least 132 degrees. To test this claim, yourandomly select a sample of 32 systems and find the mean activationtemperature to be 133 degrees. Assume the population standarddeviation is 3.3 degrees. Find the standardized test statistic andthe corresponding p-value.
| z-test statistic = -1.71, p-value = 0.0865 |
| z-test statistic = 1.71, p-value = 0.0865 |
| z-test statistic = -1.71, p-value = 0.0432 |
| z-test statistic = 1.71, p-value = 0.0432 |
Flag this Question
Question 9 2 pts
A consumer group claims that the mean acceleration time from 0to 60 miles per hour for a sedan is 7.0 seconds. A random sample of33 sedans has a mean acceleration time from 0 to 60 miles per hourof 7.6 seconds. Assume the population standard deviation is 2.3seconds. Find the standardized test statistic and the correspondingp-value.
| z-test statistic = -1.499, p-value = 0.067 |
| z-test statistic = -1.499, p-value = 0.134 |
| z-test statistic = 1.499, p-value = 0.067 |
| z-test statistic = 1.499, p-value = 0.134 |
Flag this Question
Question 10 2 pts
A consumer research organization states that the mean caffeinecontent per 12-ounce bottle of a population of caffeinated softdrinks is 37.8 milligrams. You find a random sample of 48 12-ouncebottles of caffeinated soft drinks that has a mean caffeine contentof 35.2 milligrams. Assume the population standard deviation is12.5 milligrams. At ?=0.05, do you support or reject theorganization’s claim using the test statistic?
| Claim is null, reject the null and reject claim as teststatistic (-1.44) is in the rejection region defined by thecritical value (-1.96) |
| Claim is alternative, fail to reject the null and support claimas test statistic (-1.44) is not in the rejection region defined bythe critical value (-1.64) |
| Claim is alternative, reject the null and reject claim as teststatistic (-1.44) is in the rejection region defined by thecritical value (-1.64) |
| Claim is null, fail to reject the null and support claim astest statistic (-1.44) is not in the rejection region defined bythe critical value (-1.96) |