« previous next »

Author Question: A gaming control board claims that the average household income of those people playing blackjack at ... (Read 140 times)

iveyjurea

  • Hero Member
  • *****
  • Posts: 555
on: Jun 24, 2018
A gaming control board claims that the average household income of those people playing blackjack at casinos is at least 50,000.
 
  Assume that the distribution of household income of those people playing blackjack is normally distributed with a standard deviation of 7,559. Suppose that for a sample of 45 households, it is found that the average income was 48,326. Is the gaming control board incorrect in asserting that the average household income of blackjack players is at least 50,000? Use the 10 per cent significance level.

Question 2

Which of the following can be the null hypothesis for a research study that would employ the chi-square test for independence?
 
  A) H0: gender and SUV ownership are dependent
  B) H0: gender and SUV ownership are independent
  C) H0: gender = SUV ownership
  D) H0: 2gender = 2SUV ownership
Statistics, Data Analysis, and Decision Modeling ¦ Evans ¦ 5th Edition
Buy Test-Bank


Athena23

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Jun 24, 2018
Answer to Question 1

H0 :   50,000 against H1 :  < 50,000
Test statistic Z = (48,326 - 50,000 ) / (7,559 / 6.71 ) = -1.485
Since p-value = P(Z < -1.485 ) = 0.0687, we can reject H0 at  = 0.10.
Therefore, there is sufficient evidence to disprove the claim of the gaming control board.

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Genetic control of flower symmetry. Genetic control of flower symmetry.
People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat
Reasons for Denied Claims and Solutions Reasons for Denied Claims and Solutions
Internal and External Loci of Control Internal and External Loci of Control
Variable and absorption costing, explaining operating-income differences. Variable and absorption costing, explaining operating-income differences.
Gene Expression Control in a Fly Gene Expression Control in a Fly
Video: Neurotransmission at chemical synapses & Excitory and inhibitory potentials

For a complete list of videos, visit our video library