The measures of the angles of the triangle are 32°, 53°, 95°. Based on the side lengths, what are the measures of each angle? mAngleA = 95°, mAngleB = 53°, mAngleC = 32°
mAngleA = 32°, mAngleB = 53°, mAngleC = 95°
mAngleA = 43°, mAngleB = 32°, mAngleC = 95°
mAngleA = 53°, mAngleB = 95°, mAngleC = 32°

(a)

(b) The best  point estimate of is the sample mean

The margin of error =  4.552

Step-by-step explanation:

Given : The confidence interval for the population mean =  (13.046 , 22.15)

Sample mean :

Standard deviation :

Sample size :

a. Let represents the population mean.

Then we can write the confidence interval for the population mean as :-

b. The best  point estimate of is the sample mean

Also, the lower limit of confidence interval can be written as

i.e.

Hence, the margin of error =  4.552