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2. A researcher wants to know if there is a difference in how busy someone is based on whether that person identifies as an early bird or a night owl. The researcher gathers data from randomly selected people in each group, the higher scores represent higher levels of being busy. Test for a difference between the two at the 10% level of significance. Scores are normally distributed and population variances are assumed to be not equal. Early Bird 27 29 26 23 28 30 22 25 27 33 Night Owl 26 11 20 19 |26 18 13 25 22 Solve first for the mean and standard deviation first. Use the standard deviation formula with n-1 as the denominator. a. Claim (in symbolic form):, Ho:_ На: b. level of significance: test-statistic: tail of distribution: c. Decision Rule: Reject Ho if

2. A researcher wants to know if there is a difference in how busy someone is based on whether that person identifies as an early bird or a night owl. The researcher gathers data from randomly selected people in each group, the higher scores represent higher levels of being busy. Test for a difference between the two at the 10% level of significance. Scores are normally distributed and population variances are assumed to be not equal. Early Bird 27 29 26 23 28 30 22 25 27 33 Night Owl 26 11 20 19 |26 18 13 25 22 Solve first for the mean and standard deviation first. Use the standard deviation formula with n-1 as the denominator. a. Claim (in symbolic form):, Ho:_ На: b. level of significance: test-statistic: tail of distribution: c. Decision Rule: Reject Ho if

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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2. A researcher wants to know if there is a difference in how busy someone is based on whether that person identifies as an early bird or a night owl. The researcher gathers data from randomly selected people in each group, the higher scores represent higher levels of being busy. Test for a difference between the two at the 10% level of significance. Scores are normally distributed and population variances are assumed to be not equal. Early Bird 23 28 29 26 30 22 | 25 27 33 27 Night Owl | 26 20 26 11 19 18 13 25 22 Solve first for the mean and standard deviation first. Use the standard deviation formula with n-1 as the denominator. a. Claim (in symbolic form): Ho: На: b. level of significance: test-statistic: tail of distribution:_ c. Decision Rule: Reject Ho if d.Computation e. Decision (Reject Ho or Failed to reject Ho) f. Conclusion
Transcribed Image Text:2. A researcher wants to know if there is a difference in how busy someone is based on whether that person identifies as an early bird or a night owl. The researcher gathers data from randomly selected people in each group, the higher scores represent higher levels of being busy. Test for a difference between the two at the 10% level of significance. Scores are normally distributed and population variances are assumed to be not equal. Early Bird 23 28 29 26 30 22 | 25 27 33 27 Night Owl | 26 20 26 11 19 18 13 25 22 Solve first for the mean and standard deviation first. Use the standard deviation formula with n-1 as the denominator. a. Claim (in symbolic form): Ho: На: b. level of significance: test-statistic: tail of distribution:_ c. Decision Rule: Reject Ho if d.Computation e. Decision (Reject Ho or Failed to reject Ho) f. Conclusion
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