A University Is Interested in Promoting Graduates of Its Honors

Multiple Choice

A university is interested in promoting graduates of its honors program by establishing that the mean GPA of these graduates exceeds 3.50.A sample of 36 honors students is taken and is found to have a mean GPA equal to 3.60.The population standard deviation is assumed to equal 0.40.At a 5% significance level,the critical value(s) is(are) ________.

A) 1.645
B) 1.690
C) -1.96 and 1.96
D) -2.030 and 2.030