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A company measured the typing speed in words per minute (wpm) for a sample of experienced...

A company measured the typing speed in words per minute (wpm) for a sample of experienced typists using a new type of keyboard design. The mean wpm was 62.5.

(a) What is the research question of interest for this survey?

(b) What is the population parameter in this study? What is the appropriate statistical notation (symbol) for this parameter?

(c) What is the sample statistic in this study? What is the appropriate statistical notation (symbol) for this statistic?

Math   Statistics-And-Probability   
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Answer #1

(a) What is the research question of interest for this survey?

The company wanted measure the typing speed in words per minute (wpm) using a new type of keyboard design

(b) What is the population parameter in this study? What is the appropriate statistical notation (symbol) for this parameter?

mean typing speed in words per minute (wpm) using the new type of keyboard design

The correct notation is

(c) What is the sample statistic in this study? What is the appropriate statistical notation (symbol) for this statistic?

Mean typing speed in words per minute (wpm) for experienced typists using the new type of keyboard design

The correct notation is

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