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Author Question: A 95 confidence interval for a population mean is determined to be 100 to 120 . If the confidence ... (Read 226 times)

khang

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on: Jun 24, 2018
A 95 confidence interval for a population mean is determined to be 100 to 120 . If the confidence coefficient is reduced to .90, the interval for  _____.
 a. becomes narrower
  b. becomes wider
  c. does not change
  d. becomes .1

Question 2

The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces. What is the probability that a randomly selected item weighs exactly 8 ounces?
 a. .5
  b. 1.0
  c. .3413
  d. None of the answers is correct.
Statistics, Data Analysis, and Decision Modeling ¦ Evans ¦ 5th Edition
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owenfalvey

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Reply #1 on: Jun 24, 2018
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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khang

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Reply #2 on: Jun 24, 2018
Thank you


owenfalvey

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Reply #3 on: Jun 24, 2018
No problemo


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