A study was conducted to estimate the hospital costs for accident victims who were involved in drunk driving. A sample of forty-six randomly selected cases has a mean of $9,700 and a standard deviation of $2,870. Test the claim that the population mean hospital cost for accidents is higher than $9400. Use a 93% confidence level. Formulate the hypotheses.

Do you reject or fail to reject the Null Hypothesis?

What is the p-value?

Is the claim valid?