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Earn +20 ptsQ: What is the difference between t test and z test in hypothesis testing?
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How do you decide whether to use a z test or a t test when testing a hypothesis about a population mean?
You use a z test when you are testing a hypothesis that is using proportions You use a t test when you are testing a hypothesis that is using means
Example of alternative hypothesis?
5. The manufacturer of a spot remover claims that his product removes 90 percent of all spots. In a random sample, the spot remover removes 11 of 16 stains. Write the null and alternative hypotheses.
What is the difference between statistic and an estimate?
statistic is a test used to test a hypothesis andestimation is finding the cost before it has been actually manufactured
What is the difference between estimate and statistic?
statistic is a test used to test a hypothesis andestimation is finding the cost before it has been actually manufactured
What is difference between regression testing and retesting?
A regression test is a test where a previously known bug is tested for after a change. A retest is simply repeating a test.
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