Hypothesis Testing (One Sample -- mean) 5. a) The Canadian Tire store chain issues its own credit card. The credit manager wants to find whether the mean monthly unpaid balance is more than $380. A random check of 52 unpaid balances revealed the sample mean to be $388 and the standard deviation is $35. Using hypothesis testing, can the credit manager conclude the population mean is more than $380 at the 0.01 significance level? b) After completing the hypothesis test, calculate the p-value and compare this to the level of significance, what can you conclude