Statistics. histogram

May 7th, 2015
DotaCN
Category:
Statistics
Price: $10 USD

Question description

Using the telephone numbers listed in your local directory as your population, randomly obtain 20 samples of size 3. From each telephone number identified as a source, take the fourth, fifth, and sixth digits.

•Calculate the mean of the 20 samples

•Draw a histogram showing the 20 sample means. (Use classes -0.5 to 0.5, 0.5 to 1.5, 1.5 to 2.5 and so on).

•Describe the distribution of the x-bars that you see in part b (shape of distribution, center, and the amount of dispersion).

•Draw 20 more samples and add the 20 new x-bars to the histogram in part b. Describe the distribution that seems to be developing.

Use the empirical rule to test for normality. See the sampling distribution of sample means and the central limit theorem develop from your own data!


Tutor Answer

(Top Tutor) Daniel C.
(997)
School: UCLA
PREMIUM TUTOR

Studypool has helped 1,244,100 students

8 Reviews


Summary
Quality
Communication
On Time
Value
kevin12622
Nov 29th, 2016
" Goes above and beyond expectations ! "
kiln82
Nov 20th, 2016
" awesome work thanks "
ashleyisgod
Nov 16th, 2016
" Top quality work from this guy! I'll be back! "
likeplum4
Nov 7th, 2016
" Excellent work as usual "
Molly_Moon
Oct 24th, 2016
" AMAZING as always! "
kpcutie
Oct 15th, 2016
" Excellent job "
Hemapathy
Oct 2nd, 2016
" all I can say is wow very fast work, great work thanks "
pmallory
Sep 23rd, 2016
" Totally impressed with results!! :-) "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1823 tutors are online

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