help please

6. [10.22 Points] DETAILS BBUNDERSTAT12 8.1.016. MY NOTES ASK YOUR TEACHER How much customers buy is a direct result of how much time they spend in the store. A study of average shopping times in a large national houseware store gave the following information (Source: Why We Buy: The Science of Shopping by P. Underhill). 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 the claim that a woman with a female friend spends an average of 8.3 minutes shopping in such a store. (a) What would you use for the null and alternate hypotheses if you believe the average shopping time is less than 8.3 minutes? 0 Hazy. = 8.3;HT: ,u 3.3 0 H04; = 8.3;HT: p t 3.3 O Hazy.\" 8.3;H]:_u :33 Is this a right-tailed, left-tailed, or two-tailed test? 0 rightetailed O left-tailed O twotailed (b) What would you use for the null and alternate hypotheses if you believe the average shopping time is different from 8.3 minutes? OH :u=8.3;H 41:33 0 T O Hozp8.3;H,:p=3.3 OH 44:33:14 :,u45.- Hizp. =45 0 Ham. : 4.5;H,: ,u >45 0 H04; = 4.5;HT: p :45 O Hzu = 4'5:Ht: ,u 4.5 O Hozp4.5;H,:p=4.5 O Ham : 45:14,: ,u