Question 61473This question is from textbook
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1. What are the key terms in a verbal hypothesis that signify whether you are conducting a one–tailed or two-tailed test? When would you use a two population test with a large sample size at your place of employment, in your education, or in politics? Could gender be used as a variable in the creation of a test of two populations? Why or why not? When would you use a two population test with a small sample size at your place of employment, in your education, or in politics?
2. What constitutes a small sample size in a test of two populations? When testing two populations with small sample sizes, do both sample sizes have to be identical? Why or why not?
3. What are the differences among a proportion, a percentage, and a ratio? When would you use a hypothesis test for the difference in two population proportions at your place of employment, in your education, or in politics? How does a non-parametric business scenario differ from a parametric business scenario?
This question is from textbook
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 1. What are the key terms in a verbal hypothesis that signify whether you are conducting a one–tailed or two-tailed test?
Two-tailed if you are testing "equal to" or "not equal to"
One-tailed if you are testing "greater than" or "less than"
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When would you use a two population test with a large sample size at your place of employment, in your education, or in politics?
This is a personal question.
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Could gender be used as a variable in the creation of a test of two populations? Why or why not?
Sure, to test voter reaction to an issue affecting equal treatment
of the sexes in employment, education, athletic facility funding, etc.
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When would you use a two population test with a small sample size at your place of employment, in your education, or in politics?
Personal question.
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2. What constitutes a small sample size in a test of two populations? When testing two populations with small sample sizes, do both sample sizes have to be identical? Why or why not?
Small is less than 10% of the population.
The two sample sizes do not have to be identical if you are
estimating the difference of population means or of population
proportions.
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3. What are the differences among a proportion, a percentage, and a ratio?
These words can mean the same in the statement of a problem.
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When would you use a hypothesis test for the difference in two population proportions at your place of employment, in your education, or in politics?
Personal question.
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How does a non-parametric business scenario differ from a parametric business scenario?
non-parametric is binomial---data is either or.
parametric can be continuous such as the mean price of commodities.
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Cheers,
Stan H.
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