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4 May 2020
A carpet company advertises that it will deliver your carpet within 6 days of purchase. A sample of 36 past customers is taken. The average delivery time in the sample was 6.8 days. The population standard deviation is known to be 2.7 days.
Test to determine if their advertisement is legitimate at a significance level 0.05. (Show all steps)
A carpet company advertises that it will deliver your carpet within 6 days of purchase. A sample of 36 past customers is taken. The average delivery time in the sample was 6.8 days. The population standard deviation is known to be 2.7 days.
Test to determine if their advertisement is legitimate at a significance level 0.05. (Show all steps)
2 Jun 2021
