Suppose the Fat Content of a Hotdog Follows Normal Distribution

question 31

Multiple Choice

Suppose the fat content of a hotdog follows normal distribution.Ten random measurements give a mean of 21.77 and standard deviation of 3.69. The 90% confidence interval for the population variance of fat content of a hotdog is ________

• A) 5.2 to 21.3
• B) 7.3 to 36.9
• C) 19.63 to 23.91
• D) 19.85 to 23.69
• E) 2.69 to 5.1

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