Based on Hugo's study outcomes regarding his pitch speed, choose the correct conclusion that interprets the results within the context of the hypothesis test. a. There is sufficient evidence at the 5% significance level to conclude that the mean speed is greater than 48 miles per hour.
b. There is NOT sufficient evidence 5% significance level to conclude that the mean speed is greater than 48 miles per hour.
c. This is a right-tailed test, and the test statistic is more than the critical value on the right side, so we reject the null hypothesis.
d. This is a right-tailed test, and the test statistic is less than the critical value on the left side, so we reject the null hypothesis.