In Exercises 516, test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, or
Question:
In Exercises 5–16, test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, or critical value(s), then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Assume that a simple random sample is selected from a normally distributed population.
Plain M&M candies are fairly consistent in their sizes, but Data Set 38 “Candies” shows that their weights do vary. Here are the stati0.87240.8724stics for the weights of a sample of the M&M candies listed in that data set: n = 20, x = 0.8724 g, s = 0.0337 g. If it is a goal to manufacture M&Ms so that they have weights with a standard deviation less than 0.0400 g, does the sample of M&Ms appear to satisfy that goal? Use a significance level of 0.01.
Data Set 38: Candies
Weights (grams) from M&M plain candies listed by color, Hershey’s Kisses, and Reese’s Peanut Butter Cup Miniatures (first five rows shown here). Data collected and later eaten by the author.
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