A random sample of 16 statistics examinations from a large population was taken. The average score in the sample was 78.6 with a variance of 64. We are interested in determining whether the average grade of the population is significantly more than 75. Assume the distribution of the population of grades is normal. The p-value is between: a. 0.025 to 0.05
b. 0.005 to 0.01
c. 0.01 to 0.025
d. 0.05 to 0.1