Jen thinks a certain potato chip maker is putting fewer chips in their regular b

Question

Jen thinks a certain potato chip maker is putting fewer chips in their regular bags of chips. From a random sample of 22 bags of potato chips she calculated a P value of 0.056 for the sample.

(a) At a 5% level of significance, is there evidence that Jen is correct? (Type: Yes or No):

(b) At a 10% level of significance, is there evidence that she is correct? (Type: Yes or No):

(c) In a statistical test of hypotheses, we say that the data are statistically significant at level ? if

A. the P - value is larger than ?.
B. ? is small.
C. ?=0.05.
D. the P - value is less than ?.

Explanation / Answer

(a) At a 5% level of significance, there is not evidence that Jen is correct

P value is 0.056 > 0.05

No

(b) At a 10% level of significance, there is evidence that she is correct

P value is 0.056 < 0.10

Yes

(c) In a statistical test of hypotheses, we say that the data are statistically significant at level ? if

D. the P - value is less than ?.

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