Prior to the virus outbreak in Maine, a one-pound box of pasta cost $1.09 cents. You sample 24 grocery stores and find that the average cost is X-bar = $1.39 cents with a standard deviation s = 12 cents (or $0.12).
Prior to the virus outbreak in Maine, a one-pound box of pasta cost $1.09 cents. You sample 24 grocery stores and find that the average cost is X-bar = $1.39 cents with a standard deviation s = 12 cents (or $0.12).
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Prior to the virus outbreak in Maine, a one-pound box of pasta cost $1.09 cents. You sample 24 grocery stores and find that the average cost is X-bar = $1.39 cents with a standard deviation s = 12 cents (or $0.12). You want to see if this is significantly different from the cost before the outbreak, so you test the following hypotheses: Ho: μ = 1.09 and Ha: μ ≠ 1.09. What is the standard error of the mean? Round your answer to three decimal places.
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