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 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?

0.55 0.81 0.09 0.89 1.34 0.49 0.94

__ ppm < μ < __ ppm

(Round to three decimals as needed).

Answer #1

Sample mean = = 0.73

Sample standard deviation = S =
[ (X^{2} - n^{2})
/ n-1 ] = 0.3975

t critical value at 0.02 level with 6 df = 3.143

98% confidence interval for is

- t * S / sqrt(n) < < + t * S / sqrt(n)

0.73 - 3.143 * 0.3975 / sqrt(7) < < 0.73 + 3.143 * 0.3975 / sqrt(7)

0.258 < < 1.202

98% CI is **(0.258 , 1.202 )**

There are some values in confidence interval are greater than 1. so it is possible that

there is too much mercury in tuna sushi.

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 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?
0.51 0.77 0.10 0.94 1.28 0.49 0.96
ppm < μ < ppm

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 95% confidence interval estimate of the
mean amount of mercury in the population. Does it appear that there
is too much mercury in tuna sushi?
0.59, 0.70, 0.11 ,0.89, 1.37, 0.55, 0.94
What is the confidence interval estimate of the...

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 98 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? 0.56 0.77 0.10 0.98
1.27 0.52 0.89 What is the confidence interval estimate of...

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% confidence interval estimate of the
mean amount of mercury in the population. Does it appear that there
is too much mercury in tuna sushi?
0.55 0.76 0.09 0.88 1.33 0.51 0.85
What is the confidence interval estimate of the...

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 95% confidence interval estimate of the
mean amount of mercury in the population. Does it appear that there
is too much mercury in tuna sushi?
Mercury (ppm)
0.54
0.73
0.09
0.93
1.37
0.55
0.83

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 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?
0.57,
0.75, 0.10, 0.95, 1.27, 0.54, 0.89

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 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?
0.52 0.79 0.11 0.87 1.35 0.57 0.89

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 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?
0.58 0.80 0.09 0.95 1.32
0.59 0.96
What is the...

A
food safety guideline is that the mercury in fish should be below
one part per million (ppm). listed below are the amounts of mercury
(ppm) found in tuna fish sampled at different stores in a major
city. Construct a 95% confidence interval estimate of the mean
amount of mercury in the population. Does it appear that there is
too much mercury in tuna fish?
0.53 0.81 0.09 0.89 1.35 0.59 0.88
First, find the confidence interval estimate of the...

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 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?
0.51 0.80 0.10 0.96 1.35 0.54 0.92
What is the confidence interval estimate of the...

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