Question
Realtor.com contains several hundred postings for onebedroom apartments in your city. You choose16 16at random and calculate a mean monthly rent of $879 and a
Realtor.com contains several hundred postings for onebedroom apartments in your city. You choose16
16at random and calculate a mean monthly rent of $879 and a standard deviation of $168. Assuming the rents in your city are Normally distributed, construct a90%
90%confidence interval for the mean monthly rent of all advertised onebedroomapartments.
(Give your answer as an interval in the form (lower limit, upper limit). Use decimal notation. Give the limits to two decimal places. UseTableDifnecessary.)
90%
90%confidenceinterval:
The95%
95%confidence interval for the mean monthly rent of all advertised onebedroom apartments is(789.50,968.50).
(789.50,968.50).
If you chose90%,
90%,rather than95%
95%confidence, would your margin of error be larger orsmaller?
The critical value
tis smaller, making the margin of errorsmaller.
The standard error is smaller, making the margin of errorsmaller.
The critical value
tis larger, making the margin of errorlarger.
The standard error is larger, making the margin of errorlarger.
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