Please select the best choice and leave a brief explanation as to why that is.

1. The owner of a newly opened local tour agency would like to determine whether or not the mean age of their clients is over 50. If so, he plans to offer a free additional package in their tour. If the owner concludes that the mean age is over 50 when it is not, the owner makes a ___________ error. If the owner concludes the mean age is not over 50 when it is, he makes a __________ error. A. Type II; Type II B. Type I; Type I C. Type I; Type II D. Type II; Type I 2. The t distribution is similar to the standard normal distribution in the following ways except: A. It is a family of curves based on the concept of degrees of freedom, which is related to sample sizes. B. It is symmetrical about the mean. C. The mean, median, and mode are equal to 0 and are located at the center of the distribution. D. It is bell-shaped and the curve neve touches the x axis. 3. The alternative hypothesis is also called the: A. Null hypothesis B. Statistical hypothesis C. Research hypothesis D. Simple hypothesis 4. It is a statement that is accepted when the sample data does not provide sufficient evidence to support the null hypothesis. A. Simple hypothesis B. Statistical hypothesis C. Composite hypothesis D. Alternative hypothesis 5. The choice of performing a one-tailed or two-tailed test depends on A. Alternative hypothesis B. Level of Significance C. Null hypothesis D. Test statistic 6. If a hypothesis test were conducted using a 5% level of significance, for which of the following p-values would the null hypothesis be rejected? A. 0.0367 B. 0.0501 C. 0.100 D. 0.299 7. For a certain hypothesis test, the computed z-value is 2.98 while the critical z-value is 2.33. The corresponding p-value for this test is A. Lesser than the significance level. B. Greater than the significance level. C. Equal to the significance level. 8. It is a hypothesis which is tested for the purpose of rejection under the assumption that it is true. A. Alternative hypothesis B. Composite hypothesis C. Null hypothesis D. Statistical hypothesis 9. Inferential statistics is so named because it allows us to examine a sample and make inferences about A. Another sample B. The population from which the sample was taken. C. An element of the sample. D. None of the above. 10. A quality control inspector needs to know if customers are getting fewer ounces of a soft drink than the 28 ounces stated on the label. After the inspector collects data, she is going to conduct a hypothesis test. She should use A. A two-tailed test. B. A one-tailed test with the rejection region on the right tail. C. A one-tailed test with the rejection region on the left tail. D. Either a one-tailed or a two-tailed test.