# Question

You have heard that the average American male is 69.7 inches tall. Yet almost all of the adult males in your personal world seem to be between 5 and 6 feet tall, with a few just over 6 feet. So how does the average get to be almost 6 feet? In fact, you are quite convinced that the average height might be something less than 69.7 inches.

a. How would you attempt to show that the above statement of “less than 69.7 inches” is true? What evidence would you collect? What would the collected evidence need to show in order to convince you of the truth of the statement?

b. How would you attempt to disprove the above statement of “less than 69.7 inches”? What evidence would you collect? What would the collected evidence need to show in order to disprove the statement?

c. Would it be easier to prove that “less than 69.7 inches” is true or to disprove it? Explain.

a. How would you attempt to show that the above statement of “less than 69.7 inches” is true? What evidence would you collect? What would the collected evidence need to show in order to convince you of the truth of the statement?

b. How would you attempt to disprove the above statement of “less than 69.7 inches”? What evidence would you collect? What would the collected evidence need to show in order to disprove the statement?

c. Would it be easier to prove that “less than 69.7 inches” is true or to disprove it? Explain.

## Answer to relevant Questions

State the null and alternative hypotheses for each of the following: a. You are investigating a complaint that “special delivery mail takes too much time” to be delivered. b. You want to show that people find the new ...When a medic at the scene of a serious accident inspects each victim, she administers the appropriate medical assistance to all victims, unless she is certain the victim is dead. a. State the null and alternative ...a. If the null hypothesis is true, what decision error could be made? b. If the null hypothesis is false, what decision error could be made? c. If the decision “reject Ho” is made, what decision error could have been ...Suppose the argument in Exercise 8.81 was to be settled using a sample of size 4; find a and b. Assume that z is the test statistic and calculate the value of z_ for each of the following: c. Ho: m = 138.5, s = 3.7, n = 14, x = 142.93 d. Ho: m = 815, s = 43.3, n = 60, x = 799.6Post your question

0