Mathematics, 10.09.2019 04:20 Nycin

Aquality control engineer is interested in the mean length of sheet insulation being cut automatically by machine. it is known that the standard deviation in the cutting length that this machine produces is 0.20 feet. a sample of 75 cut sheets yields a mean length of 12.25 feet. this sample will be used to obtain a confidence interval for the mean length cut by machine. referring to scenario 1, the z value to use in obtaining the 95% confidence interval is approximately .
a. 2.58.
b.1.96.
c. 1.75.
d. 1.645.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 19:40, mathman783

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Answers: 1

continue

Mathematics, 21.06.2019 20:50, kassandramarie16

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?

Answers: 3

continue

Mathematics, 21.06.2019 21:30, guill41

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

Answers: 2

continue

Mathematics, 22.06.2019 01:40, amendes11

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.

Answers: 3

continue

You know the right answer?

Aquality control engineer is interested in the mean length of sheet insulation being cut automatical...