5. A sample of 70 lawyers taken from New York City showed that the mean hourly rate charged by them is $420 with a standard deviation of $110. a. Construct a 95% confidence interval for the mean hourly wage for all lawyers in New York City. Specify your limits to 2 decimal places. b. What is the margin of error for the mean of $420? margin of error = c. Name two ways that the confidence interval could be made smaller. one: two:

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5. A sample of 70 lawyers taken from New York City showed that the mean hourly rate charged by them is $420
with a standard deviation of $110,
a. Construct a 95% confidence interval for the mean hourly wage for all lawyers in New York City. Specify your
limits to 2 decimal places.
b. What is the margin of error for the mean of $420?
margin of error =
c. Name two ways that the confidence interval could be made smaller.
one:
two:
Transcribed Image Text:5. A sample of 70 lawyers taken from New York City showed that the mean hourly rate charged by them is $420 with a standard deviation of $110, a. Construct a 95% confidence interval for the mean hourly wage for all lawyers in New York City. Specify your limits to 2 decimal places. b. What is the margin of error for the mean of $420? margin of error = c. Name two ways that the confidence interval could be made smaller. one: two:
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