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 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?

0.58, 0.71, 0.10, 0.86, 1.38, 0.56, 0.85

What is the confidence interval estimate of the population mean(μ) _____<μ<_____?

Answer #1

From sample data,

= X / n = 0.72

S = sqrt [ X2 - n2 / ( n -1) ] = 0.3877

df = n - 1 = 7- 1 = 6

From T table,

t critical value at 0.05 level with 6 df = 2.447

95% Confidence interval is

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

0.72 - 2.447 * 0.3877 / sqrt ( 7) < < 0.72 + 2.447 * 0.3877 / sqrt ( 7)

**0.361 < <
1.079**

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?
0.56, 0.71, 0.11, 0.96, 1.26, 0.50, 0.86
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% 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, 0.11, 0.93, 1.23, 0.50, 0.86
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 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?
0.62, 0.71, 0.10, 0.93, 1.32, 0.56, 0.80
what is the confidence interval estimate of the population...

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? 0.58 0.75 0.10 0.96
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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 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 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?
0.60 0.70 0.11 0.86 1.31 0.54 0.87
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% 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 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...

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?
0.53
0.71
0.10
0.94
1.27
0.53
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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% 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...

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