Hayes Consulting Company builds database and point-of-sale systems for golf courses and country clubs. Mr. Hayes is trying to determine total revenues for the coming year and feels he can estimate revenues based on the number of customers each month. He gathers the following data for the prior 12 months:

Perform a regression analysis on the data provided. Is there a strong correlation between Hayes Consulting’s revenues and the number of customers?

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Month January February March April May June July August September October November December Customers 222 196 243 139 175 144 184 181 145 237 144 221 Sales $2,681,554 $2,403,559 $3,021,324 $1,684,360 $2,171,832 $1,745,904 $2,389,984 $2,321,345 $1,840,303 $2,922,339 $1,835,080 $2,637,129