Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be aprofessor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming The 200 students in group 1 had a mean score of 24.8 with a standard deviation of 4 8 while the200 students in group 2 had a mean score of 18 with a standard deviation of 3.1. Complete parts (a) and (b) below.(a) Determine the 90% confidence interval for the difference in scores, u- l2. Interpret the interval.The lower bound isThe upper bound is(Round to three decimal places as needed.)Interpret the interval. Choose the correct answer below.O A. There is a 90% probability that the difference of the means is in the interval.O B. The researchers are 90% confident that the difference of the means is in the interval.OC. The researchers are 90% confident that the difference between randomly selected individuals will be in the interval.O D. There is a 90% probability that the difference between randomly selected individuals will be in the interval.(b) What does this say about priming?NextSign oute us O 10:39@2#%&backspace24.78eyudfjk brotessor, WHIle the students In group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a medard game. The students in group 1 were asked to200 students in group 2 had a mean score of 18 with a standard deviation of 3.1. Complete parts (a) and (b) below.Interpret the interval. Choose the correct answer below.O A. There is a 90% probability that the difference of the means is in the interval.O B. The researchers are 90% confident that the difference of the means is in the interval.O C. The researchers are 90% confident that the difference between randomly selected individuals will be in the interval.O D. There is a 90% probability that the difference between randomly selected individuals will be in the interval.(b) What does this say about priming?O A. Since the 90% confidence interval does not contain zero, the results suggest that priming does have an effect on scores.O B. Since the 90% confidence interval contains zero, the results suggest that priming does not have an effect on scores.O C. Since the 90% confidence interval contains zero, the results suggest that priming does have an effect on scores.ipesc

200 Students in group 1 with mean 24.8 and standard deviation 4.8 n1=200, x¯1=24.8, s1=4.8 200…

Answered: udents in group 2 had a mean score of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

An experimental determination of Pb in a bullet using ICP-OES was repeated 3 times. The mean and standard deviations were 0.034% and 0.003% repectively. What is the 95%confidence interval of the mean?
Given that the researcher wants to be sure the mean difference in the change in hemoglobin levels has a margin of error no more than 0.2 g/dL and the difference in the stand deviation between the mean hemoglobin levels for the two forms of iron supplements used to treat anemia is 1.2 g/dL, what is the desired number of recruits for the study, assuming the individuals will participate in a crossover trial, if the study’s attrition rate is expected to be .25? Group of answer choices n = 139 n = 554 n = 185 n = 55,320
The average amount of time it takes for couples to further communicate with each other after their first date has ended is 3.03 days. Is this average different for blind dates? A researcher interviewed 55 couples who had recently been on blind dates and found that they averaged 2.7 days to communicate with each other after the date was over. Their standard deviation was 0.943 days. What can be concluded at the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v Select an answer ✓ H₁: ?v Select an answer ✓ (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) c. The test statistic?v= d. The p-value = e. The p-value is ? va f. Based on this, we should g. Thus, the final conclusion is that ... Select an answer the null hypothesis. O The data suggest the population mean is not significantly different from 3.03 at a = 0.10, so there is statistically significant…
The average amount of time it takes for couples to further communicate with each other after their first date has ended is 2.31 days. Is this average different for blind dates? A researcher interviewed 52 couples who had recently been on blind dates and found that they averaged 2.2 days to communicate with each other after the date was over. Their standard deviation was 0.891 days. What can be concluded at the � = 0.10 level of significance?
Aassume that adults have iq scores that are normally distributed with a mean of 96.1 and a standard deviation 18.2 findthe first quartile which is the iq score separating the bottom 25% from the top 75% first quartile is
The mean difference in the sample (n=100) is -12.7 with a standard deviation of 8.9. A. construct a 95% confidence interval for the mean differences in depressive symptoms between drug and placebo. B. From a statistical standpoint, does this represent a significant change in depressive symptoms between the new drug and the placebo?
Salaries of 34 college graduates who took a statistics course in college have a mean, x, of $67,400. Assuming a standard deviation, o, of $15,845, construct a 90% confidence interval for estimating the population mean u.
Given that the researcher wants to be sure the mean difference in the change in hemoglobin levels has a margin of error no more than 0.2 g/dL and the difference in the stand deviation between the mean hemoglobin levels for the two forms of iron supplements used to treat anemia is 1.2 g/dL, what is the desired number of recruits for the study, assuming the individuals will participate in a crossover trial, if the study’s attrition rate is expected to be .25? Group of answer choices n= 139 n= 186 n= 554 n= 55,320

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

udents in group 2 had a mean score of 18 with a standard deviation etermine the 90% confidence interval for the difference in scores, H1