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Textbook Expert
Textbook ExpertVerified Tutor
13 Feb 2022

Given information

Given:

  1. Sample size n = 14
  2. Population mean μ = 23
  3. Standard deviation σ = 3

Step-by-step explanation

Step 1.

According to the question,

Null hypothesis,

Ho: μ =23 that means there is no sufficient data to conclude that the mean lactation period of grey seals differs from 23 days.

Alternative hypothesis,

Ha: μ ≠ 23 that means there is sufficient data to conclude that the mean lactation period of grey seals differs from 23 days.

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