Math  /  Data & Statistics

Questiona) If you take a sample of size 22 , can you say what the shape of the sampling distribution for the sample mean is?
No Why or why not? Check all that apply. nn is at least 30 nn is less than 30 σ\sigma is unknown population is not normal population is normal σ\sigma is known b) For a sample of size 22, state the mean and the standard deviation of the sampling distribution of the sample mean. mean of the sampling distribution of the sample mean when n=22n=22 : \square standard deviation of the sampling distribution of the sample mean when n=22n=22 rounded to two decimal places: \square c) If you take a sample of size 31, can you say what the shape of the distribution of the sample mean is? \square Why or why not? nn is at least 30 σ\sigma is known σ\sigma is unknown population is normal nn is less than 30 population is not normal

Studdy Solution
a) No, because **nn is less than 30** and the **population is not normal**. b) Mean of the sampling distribution: μ\mu.
Standard deviation: 2.34\textbf{2.34}. c) Yes, because **nn is at least 30**.

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