This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In 2011, the student body of a state university in Alabama consists of 30 freshmen, 25 sophomores, ... (Read 71 times)

K@

  • Hero Member
  • *****
  • Posts: 608
on: Jun 24, 2018
In 2011, the student body of a state university in Alabama consists of 30 freshmen, 25 sophomores, 27 juniors, and 18 seniors. A sample of 400 students taken from the 2012 student body showed that there are 138 freshmen, 88 sophomores, 94 juniors, and 80 seniors. Test with 5 significance level to determine whether the student body proportions have changed.

Question 2

Which of the following statements is false regarding the expected monetary value (EMV)?
 a. To calculate the EMV, the probabilities of the states of nature must be already decided upon.
  b. We choose the decision with the largest EMV.
  c. In general, the expected monetary values represent possible payoffs.
  d. None of these choices.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nanny

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jun 24, 2018
Answer to Question 1

H0: p1 = .30, p2 =.25, p3 = 0.27, p4 = .18
H1: At least one proportion differs from their specified values
Rejection region: 2 > 2.05,3 = 7.815
Test statistic: 2 = 6.844
Conclusion: Cannot reject the null hypothesis. The student body proportions have not changed since 2011, according to the data.

Answer to Question 2

C


K@

  • Member
  • Posts: 608
Reply 2 on: Jun 24, 2018
Wow, this really help

LVPMS

  • Member
  • Posts: 323
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

John Hopkins University John Hopkins University
Nursing student will understand it Nursing student will understand it
Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc
Kobayashi Eitaku, two scenes from the handscroll Body of a Courtesan in Nine Stages of ... Kobayashi Eitaku, two scenes from the handscroll Body of a Courtesan in Nine Stages of ...
Major veins of the body. Apply deep flushing effleurage to the arms and legs from distal to ... Major veins of the body. Apply deep flushing effleurage to the arms and legs from distal to ...
Dermatomes of body, posterior view Dermatomes of body, posterior view
Video: Osteoporosis

For a complete list of videos, visit our video library