Overweight Men For a random sample of 60 overweight men, the mean of the number of pounds that they were overweight was 31. The standard deviation of the population is 3.8 pounds. Use a graphing calculator and round the final answers to one decimal place. Find the 95% confidence interval of the mean of these pounds.   < μ <

Q: A distribution of measurements is relatively mound-shaped with a mean of 60 and a standard deviation…

A: From the provided information, Mean (µ) = 60 Standard deviation (σ) = 14

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A:

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A: Given Data: Sample mean (x )=15.9 Standard deviation (sd)=3.3 n=6   We know that x-μsd/n~ tn-1

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A: We should use Z rather than t, when we have- When the population standard deviation is known. And…

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A: Given that  Sample Mean \bar XXˉ = 4.104.10 Sample Standard Deviation (s)(s) = 0.080.08…

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Q: Noise levels at various area urban hospitals were measured in decibels. The mean noise level in  69…

A: We want to find 96% CI for population mean μ

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A:

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A: The normal distribution:A continuous random variable X is said to follow normal distribution with…

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A: Given n1=150 n2=120

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A: Suppose  is the population mean age of an inmate on death row.

Q: 95% confidence interval of the true mean of the noise levels in the operating rooms

A: Sample size = 23 Mean noise level = 37.9 decibels  Standard deviation = 7.6 decibels  For 95%…

Q: The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?

A:

Q: The distribution of heights in a population of women is approximately normal. Sixteen percent of the…

A: given data  normal distribution empirical rule: approximately 68 -95 -99.7% data fall within 1σ…