help with statistics problem

timer Asked: Apr 10th, 2016

Question description

Recently, it was reported that a baby born in 2014 is expected to live to a mean age of 79 years. If the standard deviation for this population is 10 year, use the Central Limit Theorem to answer questions about sampling distribution of the mean formed by taking from the population of babies born is 2014, all possible random samples of size 100.

A) Find μx̄

B) Determine σx̅

C) Can this sampling distribution of the mean be approximated by a normal distribution

D) IF the population of life expectancies for those born in 2014 is approximately normal, what is the probability that a baby born in 2014 will live to: Atleast 78? At leave age 82?

E) If a random sample of 100 babies born in 2014 were selected, what is the probability that these babies will live to at least a mean age of 78? To at least a mean age of 82?

F) why are the answers to parts (d) and (e) different?

Tutor Answer

(Top Tutor) Studypool Tutor
School: Purdue University
Studypool has helped 1,244,100 students
flag Report DMCA
Similar Questions
Hot Questions
Related Tags

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