Which of the following statements are true concerning the mean of the difference

Question

Which of the following statements are true concerning the mean of the differences between two dependent samples (matched pairsy Select all that apply A. The methods used to evaluate the mean of the diferences between two dependent variables apply if one has 71 1Q scores of taxpayers trom New York and 71 IQ scores of taxpayers from Ohio B. If one has more than 5 matched pairs of sample data, one can consider the sample to be large and there is no need to check for normality D. I, one wants to E. If one has twenty matched pairs uirement of a simple random sample is satisfied it we have dependent pairs of convenience sampling data use a confidence interval to test the clam that 0° 0 with a 0 01 significance level, the confidence interval should have a confidence level of 98%. of sample data, there is a loose requirement that the twenty differences appear to be from a normally distributed population Click to select your answer(s)

Explanation / Answer

Solution:-

=> option D. If one wants to use a confidence interval to test the claim that mu Subscript d Baseline greater than d>0 with a 0.100.10 significance level, the confidence interval should have a confidence level of 98%.

=> option E. If one has twenty matched pairs of sample data, there is a loose requirement that the twenty differences appear to be from a normally distributed population.

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