Which of the following is correct? b.The matched pairs t test is robust against
ID: 3224415 • Letter: W
Question
Which of the following is correct?
b.The matched pairs t test is robust against non-normality as long as the standard deviation of the differences is large.
c.Matched pairs designs are preferred because they require fewer subjects.
d.The matched pairs t test is the same as the one-sample t test but done on the differences.
a.Matched pair designs can be used for any data as long as the two sample sizes are equal.
You may use the t procedure, provided your sample size is large, say at least 40.
The t procedures are robust against outliers.
You are thinking of using a t procedure to construct a 95% confidence interval for the mean of a population. You suspect the distribution of the population is not Normal and may be skewed. Which of the following statements is correct? You may use the t procedure because it is robust to non-normality. You should not use the t procedure because the population does not have a Normal distribution.You may use the t procedure, provided your sample size is large, say at least 40.
Which of the following is correct? The t procedures can be used with an SRS of more than 40 observations even if the data are skewed. The t procedures can be used with convenience samples as long as the sample size is large. The t procedures require that the variable follow a Normal distribution even if the sample size is large.The t procedures are robust against outliers.
Which of these settings does not allow use of a matched pairs t procedure? You interview a sample of 64 unmarried male students and another sample of 64 unmarried female students and ask each about their ideal number of children. You interview 64 female students in their freshman year and again in their senior year and ask each about their ideal number of children. You interview 64 female students and their mothers and ask each about their ideal number of children. You interview both the husband and the wife in 64 married couples and ask each person about their ideal number of children.Explanation / Answer
Which of the following is correct?
Answer : The matched pairs t test is the same as the one-sample t test but done on the differences.
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