A truefalse test has 40 questions Suppose a passing grade is

A true/false test has 40 questions. Suppose a passing grade is 28 or more correct answers. Assume the student gets 28 andswers correct out of 70. Use a significance level of 0.05. Compue the z-statistic and the p-value.

Once the count is 40 and next time its mentioned as 70 please state it clearly. We can use single sample proportion test if we use n as 70

z = -1.61355, p-value = 2 * 0.05331253 = 0.1066