In order to test if the mean IQ of employees in an organisation exceeds 100, a sample of 30 employees was taken and the value of the test statistic computed as t29=2.42 Given a 5% significance level, _____________.

Select one:

a. reject the null hypothesis and conclude that mean IQ does not exceed 100

b. do not reject the null hypothesis and thus conclude mean IQ does not exceed 100

c. do not reject the null hypothesis and thus conclude mean IQ exceeds 100

d. reject the null hypothesis and conclude that mean IQ exceeds 100