Can the college conclude that the students in the new, Ask an Expert

Statistics

Last fall , a sample of n=36 freshman was selected to participate in a new 4-hour training program designed to improve study skills. To evaluate the effectiveness of the new program, the sample was compared with the rest of the freshman class. All freshman must take the same English Language skills course, and the mean score on the final exam for the entire freshman class 74. The students in the new program had a mean score of M=79.4 with a standard deviation of s=18.

a. On the basis of these data, can the college conclude that the students in the new program performed significantly better than the rest of the freshman class? Use a one-tailed test with .05

b. Can the college conclude that the students in the new program are significantly different from the rest of the freshman class? Use a two-tailed test with .05.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9413825

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

What is the present value of a security that will pay 9000

What is the present value of a security that will pay $9,000 in 20 years if securities of equal risk pay 12% annually? Round your answer to the nearest cent

Amount of emails mean30find the probability that 20 emails

Amount of emails. Mean=30 Find the probability that 20 emails are received on the first day and 50 emails are received on the second day.

Lets do some r suppose you have the following situation you

Let's do some R.... Suppose you have the following situation: You have a large jar of beans, 43% black, 57% white. You take a sample of 14 beans. a) Use R to figure out the probability for every single possible outcome. ...

If you know your raw score is 35 your z score is -3 and

If you know your raw score is 35, your z score is -3, and your t score is 20. The mean is 50 and the standard deviation is 5. How would you use this information to solve for a percentile rank?

You buy 200 shares of stock at 500 per share you receive

You buy 200 shares of stock at $5.00 per share. You receive one dividend of 20 cents per share. You sell the stock two years later for $6.00 a share. Fee for selling the stock online is $15.

Please help me find out how to calculate stock pricewhat is

Please help me find out how to calculate stock price. "What is the price of Company A's stock.We know company A pay dividend twice a year. And its beta=1.5 Government bond's Coupon is 8.8 and Yield is 5%(which one you sh ...

For the dataset38 39 41 42 42 43 43 45 45 47 50 50 51 51 53

For the dataset 38, 39, 41, 42, 42, 43, 43, 45, 45, 47, 50, 50, 51, 51, 53, 54 Without doing any calculations, estimate which of the following numbers is closest to the mean.

A community hospital wants to estimate the body mass index

A community hospital wants to estimate the body mass index (BMI) of its local population. To estimate the BMI with an error of at most 0.5 at a 95% confidence level, what sample size should they use? The standard deviati ...

Sixty percent of adults have looked at their credit score

Sixty percent of adults have looked at their credit score in the past six months. If you select 31 customers, what is the probability that at least 25 of them have looked at their score in the past six months?

Doolittle co is expected to pay a dividend of 23 next year

Doolittle Co. is expected to pay a dividend of $2.3 next year. Doolittle is expected to pay 20% of its earnings as dividends and will have an ROE of 9% until the fourth year. After that, its ROE is expected to decrease t ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert