Two different presses are used to press shirts for a laundry service. A random sample of the

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Two different presses are used to press shirts for a laundry service. A random sample of the number of shirts that can be pressed in 5 minutes for each type of press is given in Table 5.16.

a. Find and interpret a $99 \%$ confidence interval for the difference in the mean number of shirts pressed for the two different presses.

b. Is there a significant difference in the mean number of shirts pressed for the two different presses?

c. How big of a sample would need to be collected in order to find a mean difference of at least two shirts?

Table 5.16

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Applied Statistical Inference With MINITAB

ISBN: 9780367780579

2nd Edition

Authors: Sally A. Lesik

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Question Posted: Mar 15, 2024 03:00 AM

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Two different presses are used to press shirts for a laundry service. A random sample of the

Question:

4 5 3523 +251 Number of Shirts Pressed in 5 minutes for Two Different Brands of Presses Press A 1 2 Press B 234 3512521 4 1522352

Step by Step Answer:

Applied Statistical Inference With MINITAB

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