Starting salaries of 135 college graduates who have taken a statistics course have a mean of $42,650. Suppose the distribution of this population is approximately normal and has a standard deviation of $8,988. Using a 93% 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:

Hence, the margin error is and the confidence interval for the mean is .

Step-by-step explanation:

Given :

Sample size

Sample mean

Standard deviation

Confidence level is

(a)  

The margin error

 confidence level

    from the table

Now, the margin error

(b)

The confidence interval for the mean :

the distance from any point on the parabola to the focus is the exact same as the distance from that point to the directrix.

if you could provide answer choices that might allow me to answer the question easier if my above answer isn't an option! (:

coins of silver or gold

step-by-step explanation: