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Author Question: A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be ... (Read 468 times)

allywil32

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on: Mar 25, 2023

Question 1

A population has a mean of 75 and a standard deviation of 8. A random sample of 800 is selected. The expected value of is


◦

8


◦

75


◦

800


◦

None of these alternatives is correct.



Question 2

A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be taken. The probability that the sample mean will be larger than 82 is


◦

0.5228


◦

0.9772


◦

0.4772


◦

0.0228

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Marked as best answer by allywil32 on Mar 25, 2023

fdsajkl

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Reply #1 on: Mar 25, 2023
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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allywil32

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Reply 2 on: Mar 25, 2023
YES! Correct, THANKS for helping me on my review

cam1229

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

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