Calculus and Above
Calculus Questions? Ask a Mathematician for Answers ASAP
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7/11/2020
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a) Lower bound = 106.4
Upper bound = 113.6
b) Lower bound = 105.6
Upper bound = 114.4
B. As the sample size decreases, the margin of error increases.
c) Lower bound = 107.1
Upper bound = 112.9
C. As the level of confidence decreases, the size of the interval decreases.
d) B. No, the population needs to be normally distributed because each sample size is less than 30.
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