Solving one hypothesis testing cases.

An earlier study conducted by a shopping mall revealed that a typical shopper spent an average of 50 minutes at the shopping mall. The manager of the shopping mall wanted to find out if the average time spent by shoppers at the mall had increased after a recent renovation. A random sample of shoppers at the mall was surveyed. The data collected is shown in a table in Appendix 1.Determineif the average time spent by the shoppers at the mall had increased after the renovation with a hypothesis test at 1% significance level.

3ii(a) Daily revenue of the new 3ii(b) Satisfaction score of customers product ($) (points) 107959 74 99049 69 95460 74 96300 79 103176 82 107524 71 97420 69 101670 89 107883 80 98001 66 103987 82 89200 68 91658 77 89455 86 100905 76 87960 78 96716 77 86437 100728 87122 97899\f3i(a) Time spent at the shopping mall after renovation(minutes) 3i(b) Price that customer is willing to pay ($) 44 18 80 65 23 25 54 20 80 59 27 27 47 28 80 23 80 21 68 22 64 25 56 16 54 25 62 15 41 27 64 64 23 19 54 27 62 20 43 22 47 21 44 25 76 21 47 17 64 28 41 20 80 18 76 20 66 26 41 25 70 24 78 15 60 25 63 22 62 19 51 20 60 18 68 22 80 16 60 24 51 16 60 24 65 21 80 19