According to usa today, customers are not settling for automobiles straight off the production lines. as an example, those who purchase a $355,000 rolls-royce typically add $25,000 in accessories. one of the affordable automobiles to receive additions is bmw's mini cooper. a sample of 179 recent mini purchasers yielded a sample mean of $5,000 above the $20,200 base sticker price. suppose the cost of accessories purchased for all mini coopers has a standard deviation of $1,500. calculate a 95% confidence interval for the average cost of accessories on mini coopers.

Step-by-step explanation:

The confidence interval for population mean is given by :-

Given : Sample size : , which is a large sample , so we apply z-test .

Sample mean :

Standard deviation :

Significance level :

Critical value :

Now, a confidence interval at the 95% level of confidence will be :-

answer: the answer is c.

step-by-step explanation:

she’s dividing 1/3 of the flour into 2 jars.

hope this : )

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40