A clothing store owner wants to determine if offering a 10% discount to all account holders will encourage them to buy more. This offer was made available to 200 clients who spent R1000 or more at the...

A clothing store owner wants to determine if offering a 10% discount to all account holders will encourage them to buy more. This offer was made available to 200 clients who spent R1000 or more at the store in the past year. After one year it was found that for this sample of 50 customers on average each customer spent R327,14 more than the previous year with a standard deviation of R489,03. The store owner wants to determine that if he offers discount to all account holders at the store that the average amount that customers spend will be more than R250 at a 1% level of significance.

1.1 Formulate the null and alternative hypothesis by filling in the missing symbols and values. (Image attached)

1.2 which one of the following graphs represents the rejection region for the test ? (Image attached)

1.3 what is the statistic value (round answer to 4 decimal places)

Extracted text: Which one of the following graphs represents the rejection region for this test? Only type the letter of the option you choose Reject H Reject H Rejuct Hji Rejesta Reject Ha


Extracted text: Symbols not on keyboard Type the following: mu xbar ne