QBA FINAL EXAM UPDATED
QUESTIONS AND CORRECT ANSWERS.
Which of the following has an F distribution? - ANS s^2 1/s^2 2
The chi-square value for a one-tailed test (lower tail) when the level of significance is 0.1 and
the sample size is 15 is - ANS 7.785
The sampling distribution of the ration of two independent sample variances taken from
normal populations with equal variances is - ANS an F distribution
The symbol used for the variance of the sample is - ANS s^2
The sampling distribution used when making inferences about a single population's variance is -
ANS a chi-square distribution
Which of the following has a chi-square distribution? - ANS (n-1)s^2/o^2
The symbol used for the variance of the population is - ANS o^2
In factorial designs, the response produced when the treatments of one factor interact with the
treatments of another in influencing the response variable is known as - ANS interaction
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, an ANOVA procedure is used for data that was obtained from four sample groups each
comprised of five observations. The degrees of freedom for the critical value of F are - ANS 3
and 16
In order to determine whether or not the means of two populations are equal, - ANS either a
t test or an analysis of variance can be performed
The mean square is the sum of squares divided by - ANS its corresponding degrees of
freedom
An experimental design that permits statistical conclusions about two or more factors is a -
ANS factorial design
The variable of interest in an ANOVA procedure is called - ANS a factor
The ANOVA procedure is a statistical approach for determining whether or not - ANS the
means of two or more populations are equal
A term that means the same as the term "variable" in an ANOVA procedure is - ANS factor
The F ratio in a completely randomized ANOVA is the ratio of - ANS MSTR/MSE
In an analysis of variance, one estimate of o^2 is based upon the differences between the
treatment means and the - ANS overall sample mean
The critical F value with 6 numerator and 60 denominator degrees of freedom at a=.05 is -
ANS 2.25
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QUESTIONS AND CORRECT ANSWERS.
Which of the following has an F distribution? - ANS s^2 1/s^2 2
The chi-square value for a one-tailed test (lower tail) when the level of significance is 0.1 and
the sample size is 15 is - ANS 7.785
The sampling distribution of the ration of two independent sample variances taken from
normal populations with equal variances is - ANS an F distribution
The symbol used for the variance of the sample is - ANS s^2
The sampling distribution used when making inferences about a single population's variance is -
ANS a chi-square distribution
Which of the following has a chi-square distribution? - ANS (n-1)s^2/o^2
The symbol used for the variance of the population is - ANS o^2
In factorial designs, the response produced when the treatments of one factor interact with the
treatments of another in influencing the response variable is known as - ANS interaction
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, an ANOVA procedure is used for data that was obtained from four sample groups each
comprised of five observations. The degrees of freedom for the critical value of F are - ANS 3
and 16
In order to determine whether or not the means of two populations are equal, - ANS either a
t test or an analysis of variance can be performed
The mean square is the sum of squares divided by - ANS its corresponding degrees of
freedom
An experimental design that permits statistical conclusions about two or more factors is a -
ANS factorial design
The variable of interest in an ANOVA procedure is called - ANS a factor
The ANOVA procedure is a statistical approach for determining whether or not - ANS the
means of two or more populations are equal
A term that means the same as the term "variable" in an ANOVA procedure is - ANS factor
The F ratio in a completely randomized ANOVA is the ratio of - ANS MSTR/MSE
In an analysis of variance, one estimate of o^2 is based upon the differences between the
treatment means and the - ANS overall sample mean
The critical F value with 6 numerator and 60 denominator degrees of freedom at a=.05 is -
ANS 2.25
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
