Two professors at a local college developed a new teaching curriculum designed to increase students' grades...

Two professors at a local college developed a new teaching curriculum designed to increase students' grades in math classes. In a typical developmental math course, 53% of the students complete the course with a letter grade of A, B, or C. In the experimental course, of the 14 students enrolled, 11 completed the course with a letter grade of A, B, or C. Is the experimental course effective at the alpha equals 0.01 level of significance? Complete parts (a) through (g).

(a) State the appropriate null and alternative hypotheses.

(b) Verify that the normal model may not be used to estimate the P-value.

(d) Determine the P-value using the binomial probability distribution. State your conclusion to the hypothesis test.

(e) Suppose the course is taught with 4242 students and 3333 complete the course with a letter grade of A, B, or C. Verify whether the normal model may now be used to estimate the P-value

(f) Use the normal model to obtain and interpret the P-value. State your conclusion to the hypothesis test.

(g) Explain the role that sample size plays in the ability to reject statements in the null hypothesis.

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orchestra answered 11 months ago

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Two professors at a local college developed a new teaching curriculum designed to increase​ students' grades...

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