Question

The dean of a college is interested in the proportion of graduates from his college who...

The dean of a college is interested in the proportion of graduates from his college who have a job offer on graduation day. He is particularly interested in seeing if there is a difference in this proportion for accounting and economics majors. In a random sample of 200 of each type of major at graduation, he found that 70 accounting majors and 60 economics majors had job offers. Assume pooled estimate of the population proportion and a level of significance (α) of 0.05.

1. State your null and alternate hypotheses:

                         

2. What is the value of the test statistic? Please show all the relevant calculations.

3. What is the rejection criterion based on the p-value approach?

4. What is the Statistical decision (i.e. reject /or do not reject the null hypothesis) based on the p -value obtained? Justify your answer.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The dean of a college is interested in the proportion of graduates from his college who...
The dean of a college is interested in the proportion of graduates from his college who have a job offer on graduation day. He is particularly interested in seeing if there is a difference in this proportion for accounting and economics majors. In a random sample of 200 of each type of major at graduation, he found that 70 accounting majors and 60 economics majors had job offers. Assume pooled estimate of the population proportion and a level of significance...
The dean of a college is interested in the proportion of graduates from his college who...
The dean of a college is interested in the proportion of graduates from his college who have a job offer on graduation day. He is particularly interested in seeing if there is a difference in this proportion for accounting and economics majors. In a random sample of 100 of each type of major at​ graduation, he found that 65 accounting majors and 52 economics majors had job offers. If the accounting majors are designated as​ "Group 1" and the economics...
1- The dean of a college is interested in the proportion of graduates from her college...
1- The dean of a college is interested in the proportion of graduates from her college who have a job offer on graduation day. She is particularly interested in seeing if there is a difference in this proportion for accounting and economics majors. In a random sample of 100 of each type of major at graduation, she found that 65 accounting majors and 52 economics majors had job offers. If the accounting majors are designated as "Group 1" and the...
A dean of a business school wants to know if the proportion of graduates who use...
A dean of a business school wants to know if the proportion of graduates who use statistical inference within the first year after graduation is greater than 0.6. Suppose the test statistic was found to be 1.01. At the a = 0.10 level of significance, what would be the conclusion? Answer using only the information presented in this question; do not refer to your answers to any other questions that might have a similar set-up. Read carefully, and select all...
The Advisory Council for a college of business wants to know if the true proportion of...
The Advisory Council for a college of business wants to know if the true proportion of graduates who use statistical inference within the first year after graduation is greater than 0.5. If so, the college plans to use this finding to propose that a new "data science" course be added to the list of courses offered in the college. A marketing research firm was hired to perform a study. After taking a sample of 750 recent graduates, the firm hired...
We are interested in estimating the proportion of graduates at a mid-sized university who found a...
We are interested in estimating the proportion of graduates at a mid-sized university who found a job within one year of completing their undergraduate degree. Suppose we conduct a survey and find out that 347 of the 400 randomly sampled graduates found jobs. The graduating class under consideration included over 4500 students. (a) Consider the population parameter of interest. What is the value of the point estimate of this parameter? 4500 (b) Check if the conditions for constructing a confidence...
College students may be interested in whether or not their majors have any effect on starting...
College students may be interested in whether or not their majors have any effect on starting salaries after graduation. Suppose that 293 recent graduates were surveyed as to their majors in college and their starting salaries after graduation. Below are the data. Conduct a test of independence. (Use a significance level of 0.05.) What is the test statistic? (Round your answer to two decimal places.) Part (f) What is the p-value? (Round your answer to four decimal places.) Explain what...
A marketing research firm suspects that a particular product has higher name recognition among college graduates...
A marketing research firm suspects that a particular product has higher name recognition among college graduates than among high school graduates. A sample from each population is selected, and each asked if they have heard of the product in question. A summary of the sample sizes and number of each group answering yes'' are given below: College Grads (Pop. 1):High School Grads (Pop. 2):n1=89,n2=97,x1=55x2=49College Grads (Pop. 1):n1=89,x1=55High School Grads (Pop. 2):n2=97,x2=49 The company making the product is willing to increase...
The average salary for American college graduates is $42,400. You suspect that the average is less...
The average salary for American college graduates is $42,400. You suspect that the average is less for graduates from your college. The 59 randomly selected graduates from your college had an average salary of $41,616 and a standard deviation of $8,550. What can be concluded at the αα = 0.10 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion The null and alternative hypotheses would be: H0:H0:  ?...
The Dean of the College of Liberal Arts and Sciences (CLAS) reported that the mean time...
The Dean of the College of Liberal Arts and Sciences (CLAS) reported that the mean time for CLAS students to complete their degree at CU-Denver is less than 5 years. She randomly selected a sample of 25 recent CLAS graduates and found that their mean time to graduate was 4.75 years with a sample standard deviation of 0.8 years. At an α = 0.1 level, is their sufficient evidence to conclude that the mean time for CLAS students to complete...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT