Using a random sample from a population, Hazel cannot decide if she wants to construct a 92 percent confidence interval for the population mean or a 98 percent confidence interval for the population mean. What is the difference between the two confidence intervals? a The size of the sample determines which interval is wider. b An unbiased sample determines which interval is wider. c Which interval is wider will depend on whether a z-statistic or a t-statistic is used. d The 92 percent confidence interval will be wider than the 98 percent confidence interval. e The 92 percent confidence interval will not be as wide as the 98 percent confidence interval.

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step-by-step explanation:

i dont really.know

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

180

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