A Sport World Ltd.manager wishes to establish whether there is a relationship between golf club priceand number of units sold.A sample of10club prices last month showed the following quantities sold:

Club price$(X)	Numbers sold(Y)
185	25
120	30
265	23
200	28
450	16
225	27
160	35
340	15
380	15
280	16

ROUND ALL answers to4decimal places

Step 4:Predict Y', the number of club sold per month at a price of $200.

Y'= (keep4decimal places)

Step 5:Determine the standard error

Se= (keep4decimal places)

Step 6:use the answers from step 4and 5tocompute the 90%confidence intervalfor the number of club sold per month at a price of $200.

the t value for 90% confidence interval (from the t table) is

The lower limit of the interval is (keep4decimal places)

The upper limit of the interval is (keep4decimal places)