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  3. 3). you are given the claim that the mean of a pop

3). You are given the claim that the mean of a population is not equal to...

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Statistics

3). You are given the claim that the mean of a population is notequal to 24 cm. You
don’t believe in this claim and so you want to test it. Supposethat you know the
population standard deviation is 4 cm, and the populationdistribution is approximately
normal. To test this claim, you take a random sample asfollows
X = (20, 23, 22, 24, 24, 24, 25, 26, 24, 23, 27, 24, 29, 20, 25,26, 28).
Is there enough evidence to support the claim? Justify your answercompletely.

4) Based on problem 3 above, compute the 95 % confidenceinterval of the true mean.
Interpret this confidence interval and also explain what is themeaning of the 95%
confidence level.

Answer & Explanation Solved by verified expert
3.8 Ratings (393 Votes)
Question 3 Here we have to use one sample z test for the population mean The null and alternative hypotheses are given as below H0 24 versus Ha 24 This is a two tailed test The test statistic    See Answer
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