Starting salaries of 130 college graduates who have taken a statistics course have a mean of $42,423. Suppose the distribution of this population is normal and has a standard deviation of $9,182. Using an 85% confidence level, find both of the following: (NOTE: Do not use commas nor dollar signs in your answers.)

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 Starting salaries of 130 college graduates who have taken a statistics course have a mean of $42,423. Suppose the distribution of this population is normal and has a standard deviation of $9,182.
Using an 85% confidence level, find both of the following:
(NOTE: Do not use commas nor dollar signs in your answers.)

(a) The margin of error:
(b) The confidence interval for the mean μ:
●
●
●
<μ<
●‒‒
●●●
Transcribed Image Text:(a) The margin of error: (b) The confidence interval for the mean μ: ● ● ● <μ< ●‒‒ ●●●
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