A survey of the
a. i.
ii. sx=_______ .
iii. n _______
iv. n - 1 _________
b. Define the random variables X and
c. Which distribution should you use for this problem? Explain your choice.
d. Construct a 95% confidence Interval for the population mean worth of coupons.
i. State the confidence interval.
ii Sketch the graph.
iii. Calculate the error bound.
e. If many random samples were taken of size 14, what percent of the confidence intervals constructed should contain the population mean worth of coupons? Explain why.
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