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# Doctors at a technology research facility randomly assigned equal numbers of people to use computer ...

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Posts: 203
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3 weeks ago
Doctors at a technology research facility randomly assigned equal numbers of people to use computer keyboards in two rooms. In one room a group of people typed a manuscript using standard keyboards, while in the other room people typed the same manuscript using ergonomic keyboards to see if those people could type more words per minute. After collecting data for several days the researchers tested the hypothesis H0: μ1 - μ2 = 0 against the one-tail alternative and found a P-value of 0.22. Which is true?

▸ There's a 22% chance another experiment will give these same results.

▸ There's a 22% chance that people using ergonomic keyboards type more words per minute.

▸ None of these.

▸ There's a 22% chance that there's really no difference in typing speed.

▸ The people using ergonomic keyboards type 22% more words per minute.
Textbook

## Stats: Modeling the World

Edition: 4th
Authors:
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Answer verified by a subject expert
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Posts: 238
3 weeks ago

### Related Topics

wrote...
3 weeks ago
 Appreciate the effort, thank you!
wrote...
3 weeks ago
 You're very welcome ... please mark the topic solved when you get a chance