The mean consumption of fruit three years ago was 985 pounds

The mean consumption of fruit three years ago was 98.5 pounds. A dietician believes that fruit consumption has fallen since then (a) Determine the null and alternative hypotheses. Which of the following is correct? (b) Suppose sample data indicate that the null hypothesis should be rejected. State the conchusion of the researcher Which of the following is the conclusion that could be reached? OA There is not sufficient evidence to conchude that the mean consumption of fruit has fallen. OB. There is sufficient evidence to conclude that the mean consumption of fruit has fallen. Oc. There is not sufficient evidence to conclude that the mean consumption of fruit has stayed the same OD There is sufficient evidence to conclude that the mean consumption of frut has stayed the same. (c) Suppose, in fact, the mean consumption o o) Suppose, in fact, the mean consumption of fruits is 98.5 pounds. Did the researcher commit a type I or type II error? Click to select your answer(s) Previous Question Next Question Submit Tes Sample Tests and Quizzes Chapter 1 Pre-Test 1

Solution

a) B. H0: mean = 98.5 ag.H1: mean < 98.5........

b) C) there is not sufficient evidence to conclude that mean consumption of fruit has stayed the same!.....

c) D ) type I error , because he rejected H0 when it was true.....

d) if we tested this hypothesis at the alpha = 0.05 level of significance ,

P [ commiting this error ] = P [ commiting a type I error ] = alpha = 0.05...