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Author Question: Solve the problem. Round the standard score to the nearest tenth before using the z-score tables. ... (Read 44 times)

leo leo

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on: Jan 18, 2020

Question 1

Solve the problem. Round the standard score to the nearest tenth before using the z-score tables. Express your answer as a percent rounded to hundredths of a percent.

The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days.Assume that a random sample of 25 pregnant woman is selected and the mean is computer. What percentage of sample means will be between 265 and 271 days?
◦ 84.13%
◦ 68.26%
◦ 15.87%
◦ 99.74%

Question 2

Solve the problem. Round the standard score to the nearest tenth before using the z-score tables. Express your answer as a decimal rounded to four decimal places.

The amount of snowfall falling in a certain mountain range is normally distributed with a mean of and a standard deviation of What is the likelihood that the mean annual snowfall during 36 randomly picked years will exceed
◦ 0.5808
◦ 0.0808
◦ 0.0026
◦ 0.4192
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Marked as best answer by leo leo on Jan 18, 2020

Dnite

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Reply #1 on: Jan 18, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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leo leo

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Reply 2 on: Jan 18, 2020
YES! Correct, THANKS for helping me on my review

bblaney

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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