Question

At a local university, a sample of 49 evening students was selected in order to determine whether the average age of the evening students is significantly different from 21. The average age of the students in the sample was 23 years. The population standard deviation is known to be 3.5 years. Use a 0.05 level of significance (z 0.05= -1.64 and z0.95 = 1.64). Show all four steps of the hypothesis testing. show work by steps

Name: at a local university a sample of 49 evening students was selected in order to determine whether the average age of the evening students is significantly different from 21 the average age of 06237
Uploaded: 2023-03-29T15:35:45-08:00
Duration: 2 min 20 s
Channel: Madhur L
Description: at a local university a sample of 49 evening students was selected in order to determine whether the average age of the evening students is significantly different from 21 the average age of 06237

          At a local university, a sample of 49 evening students was
selected in order to determine whether the average age of the
evening students is significantly different from 21. The average
age of the students in the sample was 23 years. The population
standard deviation is known to be 3.5 years. Use a
0.05 level of significance (z 0.05= -1.64 and
z0.95 = 1.64). Show all four steps of the hypothesis testing. show
work by steps

Added by Gonzalo R.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Madhur L

03/29/2023

Step 1

The null hypothesis (H₀) is that the average age of evening students is equal to 21 years. The alternative hypothesis (H₁) is that the average age of evening students is significantly different from 21 years. H₀: μ = 21 H₁: μ ≠ 21 Show more…

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At a local university, a sample of 49 evening students was selected in order to determine whether the average age of the evening students is significantly different from 21. The average age of the students in the sample was 23 years. The population standard deviation is known to be 3.5 years. Use a 0.05 level of significance (z 0.05= -1.64 and z0.95 = 1.64). Show all four steps of the hypothesis testing. show work by steps