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OMIS 41 Final questions well answered graded A+
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OMIS 41 Final questions well answered graded A+
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OMIS 41 FinalIf there are two unbiased estimators of a population parameter, the one whose variance is smaller is said
to be - correct answer ✔✔relatively efficient
The letter α in the formula for constructing a confidence interval estimate of the population mean is -
correct answer ✔✔the level of significance
Which of the following increases confidence interval width - correct answer ✔✔decrease sample size
Type I error is committed if we make - correct answer ✔✔an incorrect decision when the null hypothesis
is true
The criterion always used to determine the appropriate null and alternative hypotheses is - correct
answer ✔✔the most expensive error should be type 1
The Food and Drug Administration is evaluating the effectiveness of a new birth control pill developed by
a major drug company. After extensive field trials, the FDA analyzes the data utilizing inferential statistics.
What null and alternative hypotheses should the FDA use when testing the effectiveness of this new pill -
correct answer ✔✔H0: the pill is not effective
H1: the pill is effective
Suppose you choose the following answer in Question #12: H0: The pill being tested is effective and is
ready to be marketed to the general public. H1: The pill being tested is not effective and should not be
made available to the general public. What would the Type I error be for these null and alternative
hypotheses - correct answer ✔✔pill is effective but not sold
Suppose you choose the following answer in Question #12: H0: The pill being tested is effective and is
ready to be marketed to the general public. H1: The pill being tested is not effective and should not be
made available to the general public . What would the Type II error be for these null and alternative
hypotheses - correct answer ✔✔the pill is not effective but will be sold
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