« previous next »

Author Question: A gaming control board claims that the average household income of those people playing blackjack at ... (Read 150 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?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Creede, Colorado, circa 1890, a rough silver mining town that grew from 660 people in 1889 to over 1 Creede, Colorado, circa 1890, a rough silver mining town that grew from 660 people in 1889 to over 1
Overview of RNA processing and posttranscriptional gene control Overview of RNA processing and posttranscriptional gene control
Role-Playing a Situation in Which a Patient Is from Another Culture Role-Playing a Situation in Which a Patient Is from Another Culture
Working and Living and Playing in the City Dump of Phnom Penh, Cambodia Working and Living and Playing in the City Dump of Phnom Penh, Cambodia
Household Income in the United States by Quintiles, 2009 Household Income in the United States by Quintiles, 2009
Control of Hormone Secretion Control of Hormone Secretion
Video: Arthroscopy

For a complete list of videos, visit our video library