Question

A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed below are the amounts of mercury (ppm) found in tuna sushi sampled at different stores in a major city. Construct a

9595%

confidence interval estimate of the mean amount of mercury in the population. Does it appear that there is too much mercury in tuna sushi?

0.540.54

0.740.74

0.110.11

0.920.92

1.241.24

0.490.49

0.830.83

What is the confidence interval estimate of the population mean

Answer #1

Solution :

Data are as follows :

0.54, 0.74, 0.11, 0.92, 1.24, 0.49, 0.83

Mean=

Sample standard deviation=s=0.3597 (calculate by using excel command STDEV())

n=7, df=n-1=6

(From t-table)

95% CI

95% C. I. =(0.696-0.34192, 0.696+0.34192)

= (0.35408, 1.03792)

Wr can 95% confident that the population mean (μ) falls between 0.35408 and 1.03792.

A food safety guideline is that the mercury in fish should be
below 1 part per million (ppm). Listed below are the amounts of
mercury (ppm) found in tuna sushi sampled at different stores in a
major city. Construct a 9898% confidence interval estimate of the
mean amount of mercury in the population. Does it appear that there
is too much mercury in tuna sushi?
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A food safety guideline is that the mercury in fish should be
below 1 part per million (ppm). Listed below are the amounts of
mercury (ppm) found in tuna sushi sampled at different stores in a
major city. Construct a 99%
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A food safety guideline is that the mercury in fish should be
below 1 part per million (ppm). Listed below are the amounts of
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major city. Construct a 99% confidence interval estimate of the
mean amount of mercury in the population. Does it appear that there
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below 1 part per million (ppm). Listed below are the amounts of
mercury (ppm) found in tuna sushi sampled at different stores in a
major city. Construct a 95% confidence interval estimate of the
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below 1 part per million (ppm). Listed below are the amounts of
mercury (ppm) found in tuna sushi sampled at different stores in a
major city. Construct a 98% confidence interval estimate of the
mean amount of mercury in the population. Does it appear that there
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below 1 part per million (ppm). Listed below are the amounts of
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major city. Construct a 98% confidence interval estimate of the
mean amount of mercury in the population. Does it appear that there
is too much mercury in tuna sushi?
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mean amount of mercury in the population. Does it appear that there
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major city. Construct a 99% confidence interval estimate of the
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major city. Construct a 99% confidence interval estimate of the
mean amount of mercury in the population. Does it appear that there
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