2. Reshawda used her Visa card to put $30 worth of gas in her car. However, when she got her bill she
noticed the charge put her over her credit limit. Assuming the credit card company charges her a
$25 over-limit charge, how much did the gas actually cost her?

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)