Effectiveness of distance learning: A study was done to compare the effectiveness of distance learning with...

Effectiveness of distance learning: A study was done to compare the effectiveness of distance learning with traditional classroom instruction. Eleven students took a business administration course online, while 14 students took it in a classroom. The final scores were as follows. It is reasonable to assume that the samples come from populations that are approximately normal.

Online
67	71	75	67	84	87	71
99	73	67	87

Classroom
82	75	67	82	71	82	75	82	99
67	91	75	71	87

Part 1 of 2

(a) Construct a 98% confidence interval for the difference between the mean scores for the two types of instruction. Let μ1 denote the mean score of online instruction. Use the TI-84 calculator and round the answers to one decimal place

An 98% confidence interval for the mean difference between the mean scores for the two types of instruction is

<μ1-μ2<

.

Expert Solution

mean and standard deviation for online

mean and standard deviation for classroom

orchestra answered 3 years ago

3. A study is being done to compare the effectiveness of two techniques of performing a...

3. A study is being done to compare the effectiveness of two techniques of performing a high jump. A group of 35 participants each performed the high jump twice, once using each of the two techniques, and the height of their jumps was recorded. a) State a parameter of interest (i.e. a parameter you want to test/estimate). b) Should this be a one-sided or two-sided test? c) State the null hypothesis and alternative hypothesis. d) Describe how you would set...

In a comparison of the effectiveness of distance learning with traditional classroom instruction, 12 students took...

In a comparison of the effectiveness of distance learning with traditional classroom instruction, 12 students took a business administration course online, while 14 students took it in a classroom. The final scores were as follows. Online 64 66 74 69 75 72 77 83 77 91 85 88 Classroom 80 77 74 64 71 80 68 85 83 59 55 75 81 81 Can you conclude that the mean score differs between the two types of course

Answer those question Distance learning What are the potential disadvantages of distance learning? How does distance...

Answer those question Distance learning What are the potential disadvantages of distance learning? How does distance learning benefit you in achieving your academic goals? What is distance learning? Define in your own words.

An experimental study was conducted in order to compare the effectiveness of two drugs in the...

An experimental study was conducted in order to compare the effectiveness of two drugs in the treatment of hypertension. 60 patients with similar hypertension conditions were included in the study. Researchers randomly assigned 30 hypertensive patients to each treatment group. The patients in group one received drug 1 while those in group two received drug 2. After the treatment, the patients in group one had an average blood pressure of 131.80 with a standard deviation of 2.50, and the patients...

A study was conducted to compare the effectiveness of three teaching techniques in teaching English to...

A study was conducted to compare the effectiveness of three teaching techniques in teaching English to Year 6 students. The three teaching techniques are – Using video clips, Using worksheets and Using flash cards. Equal number of students were randomly assigned to the three different treatments. The results are shown in the tables below: Scores in Statistics Treatment N Mean Std. Deviation Std. Error Using Video Clips 20 27.20 3.05 .96 Using Worksheets 20 23.60 3.31 1.04 Using Flash Cards...

Compare and contrast Organisational learning and Learning Organisations

An experiment was done to test the effectiveness of a drug that is being considered for...

An experiment was done to test the effectiveness of a drug that is being considered for possible use in the treatment of people who experience chronic anxiety. Fifty people who are chronically anxious are identified through a local health clinic, and all 50 people give their informed consent to participate in the experiment. Twenty-five people are randomly assigned to the experimental group, and they receive the new drug. The other 25 people are randomly assigned to the control group, and...

In the past, the average teaching evaluation score at a college has been 4.10. The administration believes the move to distance learning has had a negative impact on teaching effectiveness

1. In the past, the average teaching evaluation score at a college has been 4.10. The administration believes the move to distance learning has had a negative impact on teaching effectiveness . A random sample of 50 course sections has been selected. The sample showed an average teaching evaluation score of 4.03 and a standard deviation of 0.35. You want to test whether the administration's belief is legitimate. You want to test this hypothesis at 95% level of confidence....

To determine the effectiveness of learning a cartwheel by watching a video, a gymnastics teacher randomly...

To determine the effectiveness of learning a cartwheel by watching a video, a gymnastics teacher randomly divided 15 novice gymnasts into 3 groups of 5 students each. One group (control) viewed a live demonstration of a cartwheel one time and then was tested. A second group (video) watched a video of a cartwheel 10 times, and then was tested. The third group (live) watched 10 live demonstrations of a cartwheel and then was tested. All 15 subjects were ranked on...

Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose...

Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves. Of interest is the average length of time in months patients live once starting the treatment. Two researchers each follow a different set of 40 AIDS patients from the start of treatment until their deaths. The following data (in months) are collected....

Question