Question

A small community college claims that their average class size is equal to 35 students. This claim is being tested with a level of significance equal to 0.02 using the following sample of class sizes: 42, 28, 36, 47, 35, 41, 33, 30, 39 and 48. Assume class sizes are normally distributed. What is the value of the test statistic? A)1.58 B)1.36 C)2.05 D)2.26

Name: a small community college claims that their average class size is equal to 35 students this claim is being tested with a level of significance equal to 002 using the following sample of clas 47705
Uploaded: 2022-07-07T17:54:58-08:00
Duration: 2 min 6 s
Channel: David Nguyen
Description: a small community college claims that their average class size is equal to 35 students this claim is being tested with a level of significance equal to 002 using the following sample of clas 47705

          A small community college claims that their average class size is equal to 35 students. This claim is being tested with a level of significance equal to 0.02 using the following sample of class sizes: 42, 28, 36, 47, 35, 41, 33, 30, 39 and 48. Assume class sizes are normally distributed. What is the value of the test statistic?
A)1.58
B)1.36
C)2.05
D)2.26

Added by Kristy S.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert David Nguyen

07/07/2022

Step 1

Given class sizes: 42, 28, 36, 47, 35, 41, 33, 30, 39, 48 Sum of class sizes = 42 + 28 + 36 + 47 + 35 + 41 + 33 + 30 + 39 + 48 = 369 Sample mean (x̄) = Sum of class sizes / Number of classes = 369 / 10 = 36.9 Show more…

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A small community college claims that their average class size is equal to 35 students. This claim is being tested with a level of significance equal to 0.02 using the following sample of class sizes: 42, 28, 36, 47, 35, 41, 33, 30, 39 and 48. Assume class sizes are normally distributed. What is the value of the test statistic? A)1.58 B)1.36 C)2.05 D)2.26