# Find the probability in this auto insurance example

Anonymous

Question description

Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is 150000 dollars. Assume the standard deviation is 38000 dollars. Suppose you take a simple random sample of 98 graduates.

(a) Find the probability that a single randomly selected policy has a mean value between 139252 and 141171.3 dollars.
P(139252 < X < 141171.3) =

Find the probability that a random sample of size n=98 has a mean value between 139252 and 141171.3 dollars.
P(139252 < M < 141171.3) =

(Top Tutor) Studypool Tutor
School: Duke University
Studypool has helped 1,244,100 students
flag Report DMCA

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