ow. difference of the means is in the interval. e of the means is in the interval. difference between randomly selected individuals will be in the interval. a betwen randomnly selocted individduale will be in the intenral

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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(b) What does this say about priming?
A. Since the 90% confidence interval contains zero, the results suggest that priming does not have an effect on scores.
B. Since the 90% confidence interval does not contain zero, the results suggest that priming does have an effect on scores.
C. Since the 90% confidence interval does not contain zero, the results suggest that priming does not have an effect on scores.
D. Since the 90% confidence interval contains zero, the results suggest that priming does have an effect on scores.
O 0 O O
Transcribed Image Text:(b) What does this say about priming? A. Since the 90% confidence interval contains zero, the results suggest that priming does not have an effect on scores. B. Since the 90% confidence interval does not contain zero, the results suggest that priming does have an effect on scores. C. Since the 90% confidence interval does not contain zero, the results suggest that priming does not have an effect on scores. D. Since the 90% confidence interval contains zero, the results suggest that priming does have an effect on scores. O 0 O O
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 a professor,
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 21.4 with a standard deviation of 3.3, while the 200 students in group 2 had
a mean score of 18.8 with a standard deviation of 2.9. Complete parts (a) and (b) below.
(a) Determine the 90% confidence interval for the difference in scores, µ1 - H2. Interpret the interval.
The lower bound is
The upper bound is.
(Round to three decimal places as needed.)
Interpret the interval. Choose the correct answer below.
O A. The researchers are 90% confident that the difference of the means is in the interval.
O B. There is a 90% probability 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.
Transcribed Image Text: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 a professor, 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 21.4 with a standard deviation of 3.3, while the 200 students in group 2 had a mean score of 18.8 with a standard deviation of 2.9. Complete parts (a) and (b) below. (a) Determine the 90% confidence interval for the difference in scores, µ1 - H2. Interpret the interval. The lower bound is The upper bound is. (Round to three decimal places as needed.) Interpret the interval. Choose the correct answer below. O A. The researchers are 90% confident that the difference of the means is in the interval. O B. There is a 90% probability 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.
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