Abunk found that in recent years, the average monthly charge on scredit card was St.400 Win an improving economy, they suspect that this would increased A sample of customers died in wage may charge of 51.425 12 with a standard deviation of 518266 Do these data provide statistical evidence that the manage monthly charge has increased Formulate the appropriate hypothesis test and draws condition Use a level of significance of 0.05 C Is there suficient evidence at the level of sign cance that the average monthly charge has increased? Determine the null hypotheel. Hy and the small hypothesis H H Type whole numbers) Compute the best statute found to two decima ponded) thing above of significance of 0.05 what is the critical values Round then decimal places as needed Find the value for the out Rund to the decimal acessed What your conclusion The Das ve chosen we mini Thara widence to concluded that means than 1.400