Posted: November 14th, 2015

Statistics

Statistics

There are big spenders among University of Alabama football season ticket holders. This data set Roll Tide!
shows the dollar amount of the purchases made at the previous two Alabama home football games by 500 season ticket holders randomly selected from all season ticket holders. The Univ. of Alabama marketing department is considering a special event hosted by the governor at the next home game for season ticket holders who spent $1000 or more at the previous two home football games. From these data construct a 95% confidence interval for the proportion p of all Alabama football season ticket holders who will qualify for the special event.
calculate the standard error sqrt(((p^^^)((1-p^^^)))/n) of p̂ to 3 decimal places.

– either of the following will help:
in cell B3 type =IF(A3>=1000,1,0), then press Enter; click on cell B3, then double-click on the small dark

square in the lower right corner of B3; then sum B3:B502.
order cells A3:A502 from largest to smallest by clicking the “Sort and Filter” icon at the right end of the

Home tab menu ribbon.

lower bound

upper bound.

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