6. In the general linear equation, Y = bX + a, what is the value of a called? A)

Question

6.
In the general linear equation, Y = bX + a, what is the value of a called?
A) the slope
B) the Y-intercept
C) the X-intercept
D) the beta factor
7.
Which of the following points is on the line defined by the equation, Y = 4X + 2?
A) X = 0 and Y = 2
B) X = 1 and Y = 4
C) X = 2 and Y = 8
D) X = 3 and Y = 9
8.
Which of the following is a characteristic of a nonparametric test?
A) A numerical score is required for each individual.
B) The hypotheses concern population means and variances.
C) The test requires assumptions about the population means or variances.
D) none of the above
9.
The term observed frequency refers to ____.
A) the frequencies found in the sample data
B) the frequencies found in the population being examined
C) the frequencies computed from the null hypothesis
D) the frequencies that are hypothesized for the population being examined
10.
The expected frequencies ____.
A) are always whole numbers
B) can contain fractions or decimal values
C) can contain both positive and negative values
D) can contain fractions and negative numbers
11.
The term expected frequencies refers to ____.
A) the frequencies found in the sample data
B) the frequencies computed from the null hypothesis
C) the frequencies that are found in the population being studied
D) the frequencies that are hypothesized for the population being studied
12.
A chi-square test for goodness of fit is used to test whether or not there are any preferences among three brands of cola. If the study uses a sample of n = 60 subjects, then the expected frequency for each category would be ____.
A) 1
B) 15
C) 20
D) 30

Explanation / Answer

6.In the general linear equation, Y = bX + a the value of 'a' is called Y-intercept Ans: (B) ________________________________________________________________________ 7.the equation of the line is Y = 4X + 2. The point X=0 and Y=2 lies on this line Ans.: (A) ________________________________________________________________________ 8.characteristic of a nonparametric test? A numerical score is not required for each individual. The hypotheses is not concerned with population means and variances. The test does not require assumptions about the population means or variances. Ans: (D) None of the above ________________________________________________________________________ 9.The term observed frequency refers to the frequencies found in the sample data Ans: (A) _________________________________________________________________________ 10.The expected frequencies can contain fractions or decimal values but cannot be negative Ans: (B) _________________________________________________________________________ 11.The term expected frequencies refers to the frequencies that are hypothesized for the population being studied. Ans: (D) ___________________________________________________________________________ 12.A chi-square test for goodness of fit is used to test whether or not there are any preferences among three brands of cola. If the study uses a sample of n = 60 subjects, then the expected frequency for each category would be 20. ANs: (C)

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