According to a food website, the mean consumption of popcorn annually by America
ID: 2921192 • Letter: A
Question
According to a food website, the mean consumption of popcorn annually by Americans is 62 quarts. The marketing division of the food website unleashes an aggressive campaign designed to get Americans to consume even more popcorn. Complete parts (a) through (c) below.
(c) Suppose, in fact, the mean annual consumption of popcorn after the marketing campaign is
62 quarts. Has a Type I or Type II error been made by the marketing department? If we tested this hypothesis at the alpha equals0.01 level of significance, what is the probability of committing this error? Select the correct choice below and fill in the answer box within your choice. (Type an integer or a decimal. Do not round.)
A.The marketing department committed a Type I error because the marketing department did not reject the alternative hypothesis when the null hypothesis was true. The probability of making a Type I error is nothing.
B.The marketing department committed a Type II error because the marketing department did not reject the alternative hypothesis when the null hypothesis was true. The probability of making a Type II error isnothing.
C.The marketing department committed a Type I error because the marketing department rejected the null hypothesis when it was true. The probability of making a Type I error is nothing.
D.The marketing department committed a Type II error because the marketing department rejected the null hypothesis when it was true. The probability of making a Type II error is nothing.
Explanation / Answer
Answer : Option (C)
The marketing department committed a Type I error because the marketing department rejected the null hypothesis when it was true. The probability of making a Type I error is nothing
A Type I error was made. The probability of making a Type I error is 0
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