Calculating Standard Error of a Sample Mean

Calculate the standard error of a sample mean.

The daily high temperatures, in degrees Fahrenheit, of Des Moines for one week were:

DayTemperature (inFahrenheit)Monday64.5Tuesday64Wednesday66.5Thursday64Friday62.5Saturday61Sunday63

Using the data above, what is the standard error of the sample mean? Answer choices are rounded to the hundredths place.

• a.)
• 9.09
• b.)
• 1.53
• c.)
• 0.25
• d.)
• 0.65

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