The FDA has decided to measure a store-brand’s 16-ounce bags of potato chips. Th

ID: 3398180 • Letter: T

Question

The FDA has decided to measure a store-brand’s 16-ounce bags of potato chips. The weights of 50 bags are :

. H0: 16 (one-tailed). Use a p-value approach to the t-test at the = 1% significance level. Does the FDA have enough evidence to issue a small fine and a warning to recalibrate their packaging machinery?

16.08 16.02 15.97 16.04 16.04 16 15.84 16.01 15.97 15.81 16.03 15.89 15.98 15.82 15.91 15.92 16.03 15.91 15.96 15.99 15.93 16.04 15.92 16.01 16.1 16.13 15.86 15.98 15.93 15.98 16.05 16.03 16.08 15.93 15.96 16.07 16.02 15.91 16.04 15.88 16.03 16.11 16.07 16.12 15.85 15.99 16.07 15.97 15.91 15.9

Explanation / Answer

H0: 16

Ha: mu <=16

One tailed test.

sample size n = 50

Mean difference = -0.082

t statistic = -7.2005

Alpha = 0.01

df = 50-1=49

p value < .00001.

The result is significant at p < .01.

Since p < 0.01, reject null hypothesis.

the FDA has enough evidence to issue a small fine and a warning to recalibrate their packaging machinery

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The FDA has decided to measure a store-brand’s 16-ounce bags of potato chips. Th

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