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This question was created from Tutorial 2 - One Sample Hypothesis- Questions (2).pdf https://www.coursehero.com/file/40972716/Tutorial-2-One-Sample-Hypothesis-Questions-2pdf/

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Questlon 1 Shoprite supermarket sells 5000 packets of cereal which it now believes to be not as improved as the
new brand they recently had in each of its stores. It has decided to test—market the new brand of cereal
in some of its stores. After a month, the 15 stores have sold an average of 5200 packets each, with a
standard deviation of 500 packets. Should all supermarkets switch to selling the new brand at the 1% level of significance? State the null and alternative hypotheses How many degrees of freedom are there? State the decision rule What is the value of the test statistic? Determine the t—critical What is your decision regarding the null hypothesis? Estimate the p—value Should all supermarkets switch to selling the new brand at the 1% level of significance? Is the
difference due to chance? Explain briefly! P‘qqrhrvp-ore

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Summary of my answer: Question a Null hypothesis H o : = 5000 Alternative hypothesis H 1 : > 5000... View the full answer

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