Question

Solving a basic hypothesis test for a mean. Given the following information: ?̅ = 112.3, ?=29.8, ?=243, ?=0.05

?0: ? = 115.0 ??: ? ≠ 115.0

Calculate the z test statistic and p-value. Draw the area under the the curve that corresponds to the p-value (Hint: There are many ways you can do this. In word, use “review” and “Start Inking”. You can draw it by hand on paper, take a picture and paste it below). Make a concluson by stating whether we should reject or fail to reject the null hypothesis based on the significance level and make a statement in terms of the alternative hypothesis.

2

Answer 1