A random sample of 13 hotels in Boston had an average nightly room rate of $172.10 with a sample standard deviation of $23.90. The 99% confidence interval around this sample mean is: O a. (155.55, 188.65) O b. (165.48,178.72) O c. (151.85, 192.35) O d. (158.86, 185.34)

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A: Ghfgg

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A: The distribution of X follows uniform with a=5 and b=29.

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A: A bag contain 5 white, 7 red, 9 black balls.

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A: Given: n=50 X=8 α=1-0.98=0.02

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A: Given:

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A: The estimated prevalence =25% E= 4% CI =95% CI= 0.95 p= 0.25 E= 0.04

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Q: Probabilty of P(Z ≤ 1.76)

A: GivenP(z≤1.76)

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A: Given: Sample size(n)=25Sample mean(x¯)=244sample standard deviation(s)=24.5population mean(μ)=220

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A: Given that  Margin of error =E =125 Population standard deviation =478

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