In recent years, there has been increasing concern about hea…

In recent yeаrs, there hаs been increаsing cоncern abоut health effects оf computer terminals.  It is know that the miscarriage rate under general conditions is about 15%.  A random sample of 700 pregnant women working with a computer 1 to 20 hours per week was taken.  For this sample, there were 125 miscarriages. a) We wish to test the hypothesis that “short-term exposure (e.g., 1 to 20 hours per week) to computer terminals increases the rate of miscarriages”.  State the appropriate hypotheses. b) Using a significance level of 0.05, test the hypotheses in part (a). [Make sure to check the requirements to provide the appropriate test statistic, p-value or critical value, decision, and conclusion.]