Data Set 27 "M&M Weights" in Appendix B lists data from 100 M&Ms, and 27% of them are blue. The Mars candy company claims that the percentage of blue M&Ms is equal to 24%. Use a 0.05 significance level to test the claim that the percentage of blue M&Ms is more than 24%. Should the Mars company take corrective action?
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Null Hypothesis (H0): The percentage of blue M&Ms is equal to 24%. Show more…
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The Mars candy company claims that the percentage of blue M&Ms [2] candies is 24%. A sample of 200 M&Ms candies was selected and 54 candies were blue. a) State the null hypothesis and the alternative hypothesis. b) Test the claim using a significance level of 0.05. c) State your conclusion. Should the Mars company take corrective action?
Adi S.
Mars, Inc., claims that $24 \%$ of its M\&M plain candies are blue. A sample of $100 \mathrm{M} \& \mathrm{Ms}$ is randomly selected. a. Find the mean and standard deviation for the numbers of blue M\&Ms in such groups of 100. b. Data Set 18 in Appendix $B$ consists of a random sample of 100 M\&Ms in which 27 are blue. Is this result unusual? Does it seem that the claimed rate of $24 \%$ is wrong?
Discrete Probability Distributions
Mean, Variance, and Standard Deviation for the Binomial Distribution
Test the given claim. Data Set 26 "Cola Weights and Volumes" in Appendix B includes the weights (in pounds) of cola for a sample of cans of regular Coke $(n=36, \bar{x}=0.81682 \mathrm{lb}$ $s=0.00751 \mathrm{lb}$ and the weights of cola for a sample of cans of Diet Coke $(n=36, \bar{x}=$ $0.78479 \mathrm{lb}, s=0.00439 \mathrm{lb}$ ). Use a 0.05 significance level to test the claim that variation is the same for both types of Coke.
Inferences from Two Samples
Two Variances or Standard Deviations
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Elementary Statistics a Step by Step Approach
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