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Ackerman and Goldsmith (2011) report that students who study from a screen (phone, tablet, or comput- er) tended to have lower quiz scores than students who studied the same material from printed pages. To test this finding, a professor identifies a sample of n = 16 students who used the electronic ver- sion of the course textbook and determines that this sample had an average score of M = 72.5 on the final exam. During the previous three years, the final exam scores for the general population of students taking the course averaged p 77 with a standard deviation of o = %3D 8 and formed a roughly normal distribution. The professor would like to use the sample to determine whether students studying from an electronic screen had exam scores that are significantly different from those for the general population. a. Assuming a two-tailed test, state the null hypoth- esis in a sentence that includes the two variables being examined.

Ackerman and Goldsmith (2011) report that students who study from a screen (phone, tablet, or comput- er) tended to have lower quiz scores than students who studied the same material from printed pages. To test this finding, a professor identifies a sample of n = 16 students who used the electronic ver- sion of the course textbook and determines that this sample had an average score of M = 72.5 on the final exam. During the previous three years, the final exam scores for the general population of students taking the course averaged p 77 with a standard deviation of o = %3D 8 and formed a roughly normal distribution. The professor would like to use the sample to determine whether students studying from an electronic screen had exam scores that are significantly different from those for the general population. a. Assuming a two-tailed test, state the null hypoth- esis in a sentence that includes the two variables being examined.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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381 Today All PI 2:37 PM 6. Ackerman and Goldsmith (2011) report that students who study from a screen (phone, tablet, or comput- er) tended to have lower quiz scores than students who studied the same material from printed pages. To test this finding, a professor identifies a sample of n = 16 students who used the electronic ver- sion of the course textbook and determines that this sample had an average score of M = 72.5 on the final exam. During the previous three years, the final exam scores for the general population of students taking the course averaged u = 77 with a standard deviation of o = 8 and formed a roughly normal distribution. The professor would like to use the sample to determine whether students studying from an electronic screen had exam scores that are significantly different from those for the general population. a. Assuming a two-tailed test, state the null hypoth- esis in a sentence that includes the two variables being examined. Copyright 2018 Cengage Learning. All Rights Reserved. May not be a random sample of n = 36 students who registered for Introductory Psychology is placed in the online version of the course, At the end of the semester, all students take the same final exam. The average score for the sample of students taking the traditional lecture class, the final exam scores form a normal distribution with a mean of u = 71. a. If the final exam scores for the population have a standard deviation of o = 12, does the sample M = 76, For the general population
Transcribed Image Text:381 Today All PI 2:37 PM 6. Ackerman and Goldsmith (2011) report that students who study from a screen (phone, tablet, or comput- er) tended to have lower quiz scores than students who studied the same material from printed pages. To test this finding, a professor identifies a sample of n = 16 students who used the electronic ver- sion of the course textbook and determines that this sample had an average score of M = 72.5 on the final exam. During the previous three years, the final exam scores for the general population of students taking the course averaged u = 77 with a standard deviation of o = 8 and formed a roughly normal distribution. The professor would like to use the sample to determine whether students studying from an electronic screen had exam scores that are significantly different from those for the general population. a. Assuming a two-tailed test, state the null hypoth- esis in a sentence that includes the two variables being examined. Copyright 2018 Cengage Learning. All Rights Reserved. May not be a random sample of n = 36 students who registered for Introductory Psychology is placed in the online version of the course, At the end of the semester, all students take the same final exam. The average score for the sample of students taking the traditional lecture class, the final exam scores form a normal distribution with a mean of u = 71. a. If the final exam scores for the population have a standard deviation of o = 12, does the sample M = 76, For the general population
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