The American Express Retail Index states that the average U.S. household will spend $2747 on home improvement
Question:
The American Express Retail Index states that the average U.S. household will spend $2747 on home improvement projects this year. Suppose a large national home improvement company wants to test that figure in the West, theorizing that the average might be lower in the West. The research firm hired to conduct the study arrives at the results shown here. Analyze the data and explain the results. Comment on any substantivefindings.
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One-Sample Z Test of mu = 2747 vs < 2747 The assumed standard deviation1557 95% Upper N Mean SE Mean Bound 67 2349 190 2662 -2.09 0.018
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H 0 2747 H a 2747 This is a onetailed test Sixtyseven households were included in ...View the full answer
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Related Book For
Business Statistics For Contemporary Decision Making
ISBN: 978-1118749647
8th edition
Authors: Black Ken
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