It is thought that 12% of all students taking a particular
course received a grade of...
60.1K
Verified Solution
Link Copied!
Question
Statistics
It is thought that 12% of all students taking a particularcourse received a grade of A. In a sample of 155 students, it isfound that 21 made an A. can we conclude that the ratio of studentswith grade of A is higher than 12%? To do so
a) State the null and alternative hypotheses.
b) Compute the test statistic-value.
c) Find the critical-value.
d) Identify the decision rule and express your decision.
Answer & Explanation
Solved by verified expert
3.7 Ratings (356 Votes)
Here we have to use one sample z test for the population proportion The null and alternative hypotheses for this test are given as below Null hypothesis H0 the ratio of students with grade of A is
See Answer
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
