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, 55% of the students complete the course with a letter grade of A, B, or C. In the experimental course, of the 15 students enrolled, 11 completed the course with a letter grade of A, B, or C. Is the experimental course effective at the a = 0.1 level of significance? Complete parts (a) through (g). (a) State the appropriate null and alternative hypotheses. 0.55 versus H: p Ho: p (Type integers or decimals. Do not round.) 0.55 (b) Verify that the normal model may not be used to estimate the P-value. Because npo (1- Po) = 3.7 < 10, the normal model may not be used to approximate the P-value. (Round to one decimal place as needed.) (c) Explain why this is a binomial experiment. There is a V number of trials with The trials V independent and the probability of success is fixed at for each trial.

MATLAB: An Introduction with Applications
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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, 55​%of the students complete the course with a letter grade of​ A, B, or C. In the experimental​ course, of the 15 students​ enrolled, 11 completed the course with a letter grade of​ A, B, or C. Is the experimental course effective at the α=0.1 level of​ significance? Complete parts ​(a) through​ (g).
 
 
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,
55% of the students complete the course with a letter grade of A, B, or C. In the experimental course, of the 15 students enrolled, 11 completed the course with a letter
grade of A, B, or C. Is the experimental course effective at the a = 0.1 level of significance? Complete parts (a) through (g).
(a) State the appropriate null and alternative hypotheses.
e =
0.55 versus H1:
d :°H
(Type integers or decimals. Do not round.)
>
0.55
(b) Verify that the normal model may not be used to estimate the P-value.
Because npo (1- Po) =
< 10, the normal model may not be used to approximate the P-value.
= 3.7
(Round to one decimal place as needed.)
(c) Explain why this is a binomial experiment.
There is a
number of trials with
The trials
independent and the probability of success is fixed at
for each trial.
(Type an integer or a decimal. Do not round.)
=Rest
(erter
Transcribed Image Text: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, 55% of the students complete the course with a letter grade of A, B, or C. In the experimental course, of the 15 students enrolled, 11 completed the course with a letter grade of A, B, or C. Is the experimental course effective at the a = 0.1 level of significance? Complete parts (a) through (g). (a) State the appropriate null and alternative hypotheses. e = 0.55 versus H1: d :°H (Type integers or decimals. Do not round.) > 0.55 (b) Verify that the normal model may not be used to estimate the P-value. Because npo (1- Po) = < 10, the normal model may not be used to approximate the P-value. = 3.7 (Round to one decimal place as needed.) (c) Explain why this is a binomial experiment. There is a number of trials with The trials independent and the probability of success is fixed at for each trial. (Type an integer or a decimal. Do not round.) =Rest (erter
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