Need help with 10 Statistics Questions about the weight of football players

Dec 17th, 2015
KateS
Category:
Statistics
Price: $10 USD

Question description

Exhibit 8: The weight of football players is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds.

13.  Refer to Exhibit 8. The probability of a player weighing more than 275 pounds is

a.  0.4505

b.  0.0013

c.  0.0250

d.  0.9010


14.  Refer to Exhibit 8. The probability of a player weighing more than 150 pounds is

a.  0.8413

b.  0.9772

c.  0.0528

d.  0.5000


15.  Refer to Exhibit 8. What percent of players weigh between 175 and 225 pounds?

a.  28.81%

b.  0.5762%

c.  68.26%

d.  57.62%


16.  Refer to Exhibit 8. What is the maximum weight of the middle 95% of the players?

a.  259

b.  151

c.  249

d.  190

Exhibit 9: $6,000 is invested in Stock 1 and $4,000 in Stock 2. The expected percent returns for the two stocks are 7% and 4%, respectively.

17.  Refer to Exhibit 9. What is the expected percent return of the portfolio?

a.  6.5%

b.  5.5%

c.  5.8%

d.  6.8%


18.  Refer to Exhibit 9. What is the expected return in dollars for the portfolio?

a.  $580

b.  $650

c.  $680

d.  $550


Exhibit 10: It is known that a bottle of cologne has on average 3 ounces of content with the standard deviation of 0.10 ounces. A random sample of 100 bottles is selected.

13.  Refer to Exhibit 10. The standard deviation of the sample mean is

a.  0.3636 ounces

b.  0.0331 ounces

c.  4.0000 ounces

d.  0.0100 ounces


14.  Refer to Exhibit 10. The likelihood that the average content of the 100 bottles is less than 2.99 ounces equals

a.  2.58%

b.  2.28%

c.  15.87%

d.  11.96%


15.  Refer to Exhibit 10. The likelihood that the average content of the 100 bottles falls between 2.97 and 3.03 ounces equals

a.  89.41%

b.  95.44%

c.  99.74%

d.  68.46%


Exhibit 11: In a local university, 64% of the students live in the dormitories. A random sample of 36 students is selected for a particular study.

16.  Refer to Exhibit 11. The expected value of the sample proportion of students living in the dormitories is

a.  0.16

b.  0.85

c.  0.08

d.  0.64


17.  Refer to Exhibit 11. The standard deviation of the sample proportion of students living in the dormitories is

a.  0.16

b.  0.36

c.  0.08

d.  0.64


18.  Refer to Exhibit 11. The probability that the sample proportion of students living in the dormitories is at least 0.52 equals

a.  0.0013

b.  0.9332

c.  0.9814

d.  0.5214


Tutor Answer

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

Studypool has helped 1,244,100 students

8 Reviews


Summary
Quality
Communication
On Time
Value
Five Star Tutor
Dec 2nd, 2016
" Outstanding Job!!!! "
SjSurvivor143
Nov 16th, 2016
" Thanks for the help. "
Joemoe
Nov 3rd, 2016
" <3 it, thanks for saving me time. "
tinytim47
Oct 25th, 2016
" Wow this is really good.... didn't expect it. Sweet!!!! "
pmallory
Oct 20th, 2016
" Totally impressed with results!! :-) "
mixedballz
Oct 11th, 2016
" excellent work as always thanks for the help "
kiln82
Sep 28th, 2016
" awesome work thanks "
darnay
Sep 19th, 2016
" The best tutor out there!!!! "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1824 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