Answer Happy

Do more than 70% of local high school graduates go to college? A random sample of 400 local high school graduates found that 288 went to college. Complete the hypothesis test by filling in the blanks. Use a 5% level of significance. Fill in the blank Ha: p 0.70 _(Enter either <, >, or not-equal) Decision Rule: Reject Ho if zcalc > (Hint: This is a right-tailed test.) The sample proportion (p-hat) equals The calculated value of z is . Round the value to 2 digits after the decimal point. Be sure you use 0.70 and not p-hat in the denominator of the z score. This z-value is not in the rejection region. (The p-value is 0.1922 which is not less than 0.05.) The decision is to (enter reject or fail to reject) the null hypothesis. Using a 5% level of significance, there is not enough evidence to conclude that more than 70% of all local high school graduates go to college.