(b) In a sample of 75 bags of original Skittles, the mean number of yellow Skittles per bag was 12 with a standard deviation of 2.9. For the purposes of this exercise, assume that this was a representative sample. Is there sufficient evidence to suggest that the mean number of yellow Skittles per bag is greater than 14? Test this claim at the 0.05 significance level.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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solve part b
(a) A bag of original Skittles contained 15 red, 15 orange, 16 yellow, 12 green, and 14 purple candies. For the
purposes of this exercise, assume that this bag is representative of all skittles candies. Does this sample
provide convincing evidence that the proportion of Skittles that are yellow is less than 0.2? Test this
claim at the 0.05 significance level.
(b) In a sample of 75 bags of original Skittles, the mean number of yellow Skittles per bag was 12 with a
standard deviation of 2.9. For the purposes of this exercise, assume that this was a representative sample.
Is there sufficient evidence to suggest that the mean number of yellow Skittles per bag is greater than
14? Test this claim at the 0.05 significance level.
Transcribed Image Text:(a) A bag of original Skittles contained 15 red, 15 orange, 16 yellow, 12 green, and 14 purple candies. For the purposes of this exercise, assume that this bag is representative of all skittles candies. Does this sample provide convincing evidence that the proportion of Skittles that are yellow is less than 0.2? Test this claim at the 0.05 significance level. (b) In a sample of 75 bags of original Skittles, the mean number of yellow Skittles per bag was 12 with a standard deviation of 2.9. For the purposes of this exercise, assume that this was a representative sample. Is there sufficient evidence to suggest that the mean number of yellow Skittles per bag is greater than 14? Test this claim at the 0.05 significance level.
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