# Multiple choice - A salesman enters a food-processing facility and claims that h

**Question description**

A salesman enters a food-processing facility and claims that his new
juice box filling machine can save the company money, because he is 95%
confident it has less variation from the nominal setting than the company's
current machine. A random sample of 25 juice boxes from the salesman's machine
yields a standard deviation of 0.09 ounce. A random sample of 16 juice boxes
from the company's current machine yields a standard deviation of 0.13 ounce.
What can we conclude?

**A**

The salesman is correct. We can say with 95% confidence that his machine has less variation from the nominal setting than the company's current machine

**B**

The salesman may be correct. It is not possible to prove he is correct, but indications are that his machine has less variation from the nominal setting than the company's current machine

**C**

We cannot show that the salesman is incorrect. We cannot prove that he is wrong, but indications are that the company's machine has the same variation as the salesman's machine

**D**

## Tutor Answer

## 8 Reviews

**Quality**

**Communication**

**On Time**

**Value**

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors