Posted by me on .
A random sample of six CEOs reported how many times per year they play tennis. The data follows.
3 41 96 32 52 19
Assuming the number of games played is normally distributed and the population standard deviation σ = 10, a 95% confidence interval for μ is:

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PsyDAG,
95% = mean ± 1.96 SEm
SEm = SD/√n 
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Umair,
28.5

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Anonymous,
10

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Anonymous,
28.5, 44.5

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Anonymous,
28.5,44.5

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Anonymous,
96

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Anonymous,
55

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Anonymous,
3 96