How much customers buy is a direct result of how much timethey spend in a store.

Question

How much customers buy is a direct result of how much timethey spend in a store. A study of average shopping time in a largenational houseware store gave the following information: Women with female companion: 8.3 min Women with male companion: 4.5 min Suppose you want to set up a statistical test to challenge theclaim that a woman with a female friend spends an average of 8.3minutes shopping in such a store. a. What would you use for the null and alternativehypotheses if you beleive that the average shopping time is lessthan 8.3 minutes? Is this a right tailed, left tailed or two tailedtest? b. What would you use for the null and alternate hypotheses ifyou believe that the average shopping time is different from 8.3minutes? Is this a right tailed, left tailed or two tailedtest? Stores that sell mainly to women should figure out a way toengage the interest of men! Perhaps comfortable seats and a big TVwith sports programs would do the trick. Suppose such anentertainment center was installed and you now wish to challengethe claim that a woman with a male friend spends only 4.5 minutesshopping in a houseware store. c. What would you use for the null and altenate hypothese ifyou believe that the average shopping time is more than 4.5minutes? Is this a right tailed, left tailed or two tailedtest? d. What would you use for the null and alternate hypotheses ifyou believe that the average shopping time is different from 4.5minutes? Is this a right tailed, left tailed or two tailedtests? How much customers buy is a direct result of how much timethey spend in a store. A study of average shopping time in a largenational houseware store gave the following information: Women with female companion: 8.3 min Women with male companion: 4.5 min Suppose you want to set up a statistical test to challenge theclaim that a woman with a female friend spends an average of 8.3minutes shopping in such a store. a. What would you use for the null and alternativehypotheses if you beleive that the average shopping time is lessthan 8.3 minutes? Is this a right tailed, left tailed or two tailedtest? b. What would you use for the null and alternate hypotheses ifyou believe that the average shopping time is different from 8.3minutes? Is this a right tailed, left tailed or two tailedtest? Stores that sell mainly to women should figure out a way toengage the interest of men! Perhaps comfortable seats and a big TVwith sports programs would do the trick. Suppose such anentertainment center was installed and you now wish to challengethe claim that a woman with a male friend spends only 4.5 minutesshopping in a houseware store. c. What would you use for the null and altenate hypothese ifyou believe that the average shopping time is more than 4.5minutes? Is this a right tailed, left tailed or two tailedtest? d. What would you use for the null and alternate hypotheses ifyou believe that the average shopping time is different from 4.5minutes? Is this a right tailed, left tailed or two tailedtests?

Explanation / Answer

a. What would you use for the null andalternative hypotheses if you beleive that the average shoppingtime is less than 8.3 minutes? Is this a right tailed, left tailedor two tailed test Null Hypothesis: the average shopping time isnot less than 8.3 Alternative Hypothesis: the average shoppingtime is less than 8.3 It is a left tailed teast because in thealternative it is less than 8.3 b. What would you use for the null andalternate hypotheses if you believe that the average shopping timeis different from 8.3 minutes? Is this a right tailed, left tailedor two tailed test? NUll Hypothesis: the average shopping time isnot different from 8.3 minutes Alternative Hypothesis: the average shoppingtime is different from 8.3 minutes THis is a two tailed test c. What would you use for the null and altenatehypothese if you believe that the average shopping time is morethan 4.5 minutes? Is this a right tailed, left tailed or two tailedtest? Null Hypothesis: the average shopping time isnot more than 4.5 minutes Alternative Hypothesis: the average shoppingtime is more than 4.5 minutes Right tailed test because in the alternativehypothesis it is more than 4.5 minutes Null Hypothesis: the average shopping time isnot more than 4.5 minutes Alternative Hypothesis: the average shoppingtime is more than 4.5 minutes Right tailed test because in the alternativehypothesis it is more than 4.5 minutes d. What would you use for the null andalternate hypotheses if you believe that the average shopping timeis different from 4.5 minutes? Is this a right tailed, left tailedor two tailed tests Null Hypothesis: the average shopping timeis not different from 4.5 minutes Alternative Hypothesis: the average shoppingtime is different from 4.5 minutes This is a two tailed test Null Hypothesis: the average shopping timeis not different from 4.5 minutes Alternative Hypothesis: the average shoppingtime is different from 4.5 minutes This is a two tailed test

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