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Angelina_Jolie [31]

3 years ago

12

A 95% confidence interval for the mean lead concentration in the urine of adult men working with lead (for smelting) is 8.22 to

11.98 micrograms per
liter (g/l). The numerical value of the margin of error for this confidence interval is ______Mg/1.

1 answer:

Komok [63]3 years ago

4 0

95% confidence = 2SD method.

11.98-8.22 = 3.76

3.76 / 2 = 1.88

ME= 1.88

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Solution:

Rate of a scuba diver descending in the water for 2.6 minutes = $R _1$

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$d_2=R_2\times 2min=28 ft/min\times 2 =56 ft$

The position of scuba diver after 4.6 minutes relative to sea level:

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The scuba diver's position relative to sea level after the 4.6 minutes is 5.1ft.

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