due tomorrow before 10:00 am with references 100 words each question
swetie51) A research firm tracks the average highway speed on 30 drivers driving home on day 1. For the next 10 days, the drivers are given two cups of coffee 1 hour before the drive home. On the 10th day, the average highway speed is measured again. Does this study involve dependent or independent samples?
2) A group of workers on a manufacturing assembly line type information into a computer. They take a training class on how to use a computer, especially as related to data entry. You want to understand if the computer training was effective. How would you go about this, using statistical techniques?
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