Question

The average test scores on the Chemistry test were 82% for the treatment group and 87%...

  1. The average test scores on the Chemistry test were 82% for the treatment group and 87% for the placebo group. A statistical analysis was done to compare the grades, the outcome of the test was p=0.010.
    1. Is there a significant difference in grades between the treatment and Placebo group? Yes / No / Don’t know
    2. Which group had significantly better test results? Treatment / Placebo / Don’t know / No significant difference
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
research hypothesis stating the treatment effect in contrast to the statement of null effect alternative hypothesis...
research hypothesis stating the treatment effect in contrast to the statement of null effect alternative hypothesis central limit theorem sampling bias two-tailed test upper probability value allowed for rejecting the null hypothesis significance level parameter type 1 error two-tailed test drawing conclusions about a population from sample data empirical data inferential statistics discrete distribution random sampling Assume that a new treatment for helping alcoholics isn't any better than an old treatment. A researcher, who doesn't know this, designs a study...
The following data represent the results from an independent-measures experiment comparing three treatment conditions with n=4...
The following data represent the results from an independent-measures experiment comparing three treatment conditions with n=4 in each sample. Conduct an analysis of variance with α=0.055 to determine whether these data are sufficient to conclude that there are significant differences between the treatments. Treatment A Treatment B Treatment C 13 17 15 13 15 13 14 15 18 16 13 18 F-ratio = _______________ p-value = ______________ Conclusion: There is a significant difference between treatments These data do not provide...
The following data represent the results from an independent-measures experiment comparing three treatment conditions. Use SPSS...
The following data represent the results from an independent-measures experiment comparing three treatment conditions. Use SPSS to conduct an analysis of variance with α=0.05α=0.05 to determine whether these data are sufficient to conclude that there are significant differences between the treatments. Treatment A Treatment B Treatment C 2 4 5 4 2 7 4 4 8 2 7 9 3 3 11 F-ratio = p-value = Conclusion: These data do not provide evidence of a difference between the treatments There...
A group of researchers wants to examine whether taking multiple practice quizzes improve scores on tests....
A group of researchers wants to examine whether taking multiple practice quizzes improve scores on tests. They compare the exam scores for a sample of n1 = 12 students who took multiple practice quizzes with the test scores of a sample of n2 = 10 students who did not do any practice quizzes. Results of the study revealed that the practice quiz group had M1 = 95, SS1 = 52. The no quiz group had M2 = 92, SS2 =...
The following data represent the results from an independent-measures experiment comparing three treatment conditions. Use a...
The following data represent the results from an independent-measures experiment comparing three treatment conditions. Use a spreadsheet to conduct an analysis of variance with α=0.05α=0.05 to determine whether these data are sufficient to conclude that there are significant differences between the treatments. Treatment A Treatment B Treatment C 12 12 16 12 11 18 12 13 15 11 14 17 13 15 19 F-ratio = p-value = The results obtained above were primarily due to the mean for the third...
The null hypothesis states there will be no difference in scores on the ADS between those...
The null hypothesis states there will be no difference in scores on the ADS between those who receive the standard treatment program and those who receive the standard treatment program plus Mindfulness Therapy. The output from the analysis is below. The results are t(19) = 1.554, p = .137. Paired Sample Statistics Mean N Std Deviation Std. Error Mean Pair 1 Standard Std. Mindfulness 12.8000 10.9500 20 20 3.81962 4.28553 .85409 .95827 Paired Samples Correlations N Correlations Sig Pair 1...
Thirty undergraduate students were recruited for a research project in a psychology class. The students were...
Thirty undergraduate students were recruited for a research project in a psychology class. The students were randomly assigned to two different groups: Group A saw a moving fictional movie dealing with the death of a young man in battle. Group B saw a documentary on the war in Iraq, including the numbers of soldier killed or wounded. Empathy was then measured with the Interpersonal Empathy Test which had 25 questions scaled from 1 to 4. Thus test scores could range...
1.Quit Smoking: The New England Journal of Medicine published the results of a double-blind, placebo-controlled experiment...
1.Quit Smoking: The New England Journal of Medicine published the results of a double-blind, placebo-controlled experiment to study the effect of nicotine patches and the antidepressant bupropion on quitting smoking. The target for quitting smoking was the 8th day of the experiment. In this experiment researchers randomly assigned smokers to treatments. We conducted a hypothesis test to determine if the side effect rates are significantly different for nicotine patches versus bupropion at a 5% level of significance. (The normality conditions...
People who live in underserved remote areas do not have adequate access to professional counseling services...
People who live in underserved remote areas do not have adequate access to professional counseling services for alcohol abuse. Improvements in internet access and video conferencing technology may provide a means of delivering counseling services to underserved remote areas. The purpose of this study is to investigate the efficacy of a technology based delivery system for counseling services. The researchers designed a study with a sample of N = 40 participants who live in an underserved remote area and who...
            Gasoline: Many drivers of cars that run on regular gas actually buy premium in the...
            Gasoline: Many drivers of cars that run on regular gas actually buy premium in the belief that they will get better gas mileage. To test that belief, we use 10 cars from a company fleet in which all the cars run on regular gas. Each car is filled first with either regular or premium gasoline, decided by a coin toss, and the mileage for that tankful is recorded. Then the mileage is recorded again for the same cars for...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT