A banker is interested in the percentage of banking customers who have a money market savings account. Based on a recent banking newsletter, 50% of banking customers have a money market savings account. The banker believes this percent has decreased in recent months. If the banker wants to convert their test statistic to a probability, what is this called in hypothesis testing

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

yes

step-by-step explanation: