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Unformatted text preview: At a significance level of .05, we:
A. Reject H0 and conclude the residential home selling prices are not distributed according to
normal distribution.
B. Failed to reject H0 and conclude the residential home selling prices are not distributed
according to normal distribution.
C. Reject H0 and conclude the residential home selling prices are distributed according to
normal distribution.
D. Failed to reject H0 and conclude the residential home selling prices are distributed
according to normal distribution. AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Learning Objective: 2
Topic: ChiSquare 11093 Chapter 01  An Introduction to Business Statistics 42. In performing a chisquare goodness of fit test for a normal distribution, if there are 7
intervals, then the degrees of freedom for the chisquare statistic is ______________.
A. 7
B. 3
C. 4
D. 6
73=4 AACSB: Analytic
Bloom's: Application
Difficulty: Easy
Learning Objective: 2
Topic: ChiSquare 43. The number of degrees of freedom associated with a chisquare test for independence
based upon a contingency table with 4 rows and 3 columns is _____.
A. 7
B. 12
C. 5
D. 6
(4  1) (3  1) = 6 AACSB: Analytic
Bloom's: Application
Difficulty: Easy
Learning Objective: 2
Topic: ChiSquare 11094 Chapter 01  An Introduction to Business Statistics 44. An experiment consists of 400 observations, and four mutually exclusive groups. If the
probability of a randomly selected item being classified into any of the four groups is equal,
then the expected number of items that will be classified into group 1 is _____.
A. 25
B. 100
C. 125
D. 150
(.25)(400) = 100 AACSB: Analytic
Bloom's: Application
Difficulty: Easy
Learning Objective: 1
Topic: ChiSquare 45. The chisquare goodness of fit test for multinomial probabilities with 5 categories has
_____ degrees of freedom.
A. 5
B. 4
C. 3
D. 6
51=4 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Learning Objective: 1
Topic: ChiSquare 11095 Chapter 01  An Introduction to Business Statistics 46. While a binomial distribution describes a count data that can be classified into one of two
mutually exclusive categories, ______________________ distribution describes count data
that is classified into more than two mutually exclusive categories.
A. normal
B. skewed
C. uniform
D. multinomial AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Medium
Learning Objective: 1
Topic: ChiSquare 47. In performing chisquare goodness fit test for a normal distribution, a researcher wants to
make sure that all of the expected cell frequencies are at least five. The sample is divided into
7 intervals. The second through the sixth interval all have expected cell frequencies of at least
five. The first and the last intervals have expected cell frequencies of 1.5 each. After adjusting
the number of intervals, degrees of freedom for the chisquare statistic is ____.
A. 2
B. 3
C. 5
D. 7 AACSB: Analytic
Bloom's: Application
Difficulty: Hard
Learning Objective: 2
Topic: ChiSquare 48. As the difference between observed frequency and expected frequency
_______________, the probability of rejecting the null hypothesis increases.
A. stays the same
B. decreases
C. increases
D. go to 0 AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Learning Objective: 1
Topic: ChiSquare 11096 Chapter 01  An Introduction to Business Statistics 49. In performing a chisquare test of independence, as the difference between respective
observed and expected frequencies _________, the probability of concluding that the row
variable is independent of the column variable increases.
A. stay the same
B. decrease
C. increase
D. double AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Learning Objective: 3
Topic: ChiSquare 50. In performing a chisquare goodness of fit test with multinomial probabilities, the
___________ the difference between observed and expected frequencies, the higher the
probability of concluding that the probabilities specified in the null hypothesis is correct.
A. larger
B. smaller AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Learning Objective: 1
Topic: ChiSquare 51. A special version of the chisquare goodness of fit test that involves testing the null
hypothesis that all of the multinomial probabilities are equal is called the test for
___________.
A. goodness of fit
B. statistical independence
C. normality
D. homogeneity AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Medium
Learning Objective: 1
Topic: ChiSquare 11097 Chapter 01  An Introduction to Business Statistics 52. Consider the 3X2 contingency table below. Compute the expected frequencies in row 1.
A. 16, 14
B. 20, 30
C. 12, 18
D. 15, 15 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Learning Objective: 1
Topic: ChiSquare 11098 Chapter 01  An Introduction to Business Statistics 53. Consider the 3X2 contingency table below. Compute the expected frequencies in row 2.
A. 16, 24
B. 15, 25
C. 20, 20
D. 20, 30 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Learning Objective: 1
Topic: ChiSquare 11099 Cha...
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This document was uploaded on 01/20/2014.
 Winter '14

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