A simple random sample of 12 pages was obtained from each of 3 different

books. The Flesch reading ease score was obtained for each of those pages. The Flesch reading ease scoring system results in higher scores for text that is easier to read. Low scores are associated with works that are difficult to read. When the​ Flesch-Kincaid grade level scores are used​ instead, the analysis of variance results from software are as shown in the table below. Assume that we want to use a 0.05 significance level in testing the null hypothesis that the three authors have​ Flesch-Kincaid grade level scores with the same mean.

​Source: ​ DF: ​ SS:  ​ MS: Test​ Stat, F: Critical​ F: ​ P-value:​
Treatment: 2 68.187222 34.093611 8.978506 3.284918 0.00077​
Error: 33 125.309167 3.797247
​Total: 35 193.496389 5.528468

Reject the null hypothesis.
Reject equality of means.

a. What is the null​ hypothesis?

A.
H0: pages from the three books have the same mean Flesch reading ease scores.

B.
H0: pages from the three books have different mean Flesch reading ease scores.

C.
H0: pages from the three books have different mean​ Flesch-Kincaid grade level scores.

D.
H0: pages from the three books have the same mean​ Flesch-Kincaid grade level scores.