The annual earnings (in dollars) of 32 randomly selected magnetic resonance imaging technologists. Use the data set

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The annual earnings (in dollars) of 32 randomly selected magnetic resonance imaging technologists.

90,198 65,357 62,108 78,201 80,882 74,759 46,382 75,196 56,412 74,610 65,460 68,066 53,610 92,391 57,579 99,477 42,363 4


Use the data set to 

(a) Find the sample mean, 

(b) Find the sample standard deviation, and 

(c) Construct a 98% confidence interval for the population mean.

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