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One of the advances that helped to diminish carpal tunnel syndrome is ergonomic keyboards. The ergonomic keyboards may also increase typing speed. Ten administrative assistants were chosen to type on both standard and ergonomic keyboards. The resulting word-per-minute typing speeds follow: Ergonomic: 69 80 60 71 73 64 63 70 63 74 Standard: 70 68 54 56 58 64 62 51 64 53 A. Were the two samples obtained independently? Support your assertion. B. Conduct a hypothesis test to determine if the ergonomic keyboards increase the average words per minute attained while typing. Use a significance level of 0.025

One of the advances that helped to diminish carpal tunnel syndrome is ergonomic keyboards. The ergonomic keyboards may also increase typing speed. Ten administrative assistants were chosen to type on both standard and ergonomic keyboards. The resulting word-per-minute typing speeds follow: Ergonomic: 69 80 60 71 73 64 63 70 63 74 Standard: 70 68 54 56 58 64 62 51 64 53 A. Were the two samples obtained independently? Support your assertion. B. Conduct a hypothesis test to determine if the ergonomic keyboards increase the average words per minute attained while typing. Use a significance level of 0.025

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
Section10.3: Measures Of Spread
Problem 1GP
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One of the advances that helped to diminish carpal tunnel syndrome is ergonomic keyboards. The ergonomic keyboards may also increase typing speed. Ten administrative assistants were chosen to type on both standard and ergonomic keyboards. The resulting word-per-minute typing speeds follow: Ergonomic: 69 80 60 71 73 64 63 70 63 74 Standard: 70 68 54 56 58 64 62 51 64 53 A. Were the two samples obtained independently? Support your assertion. B. Conduct a hypothesis test to determine if the ergonomic keyboards increase the average words per minute attained while typing. Use a significance level of 0.025
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