identify the null and alternative hypothesis,test statistuc,pvalue,and conclusion
Workers at a certain soda drink factory collected data on the volumes (in ounces) of a simple random sample of
cans of the soda drink. Those volumes have a mean of 12.19 oz and a standard deviation of
oz, and they appear to be from a
oz and
oz, the
oz. Use the sample data to test the claim that the population of volumes has a standard deviation less than
oz. Use a
significance level.
identify the null and alternative hypothesis,test statistuc,pvalue,and conclusion
Solution:
Given:
Sample standard deviation =s = 0.11
Sample size = n = 21
Level of significance = = 0.025
The null and alternative hypotheses are:
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