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One item on a questionnaire asks, "How many siblings (brothers and sisters) did you have when you were a child?" A researcher computes the mean, the median, and the mode for a set of n = 50 responses to this question. Which of the following statements accurately describes the measures of central tendency?
a. Because the scores are all whole numbers, the mean will be a whole number.b. Because the scores are all whole numbers, the median will be a whole number.c. Because the scores are all whole numbers, the mode will be a whole number.d. All of the other options are correct descriptions.
Does there seem to be any difference in the effects of the antibiotics on clearance of otitis media? Express your results in terms of relative risk (RR). Consider separated analyses for unilateral and bilateral cases. Also consider and analysis co..
A research firm reported that 15% of those surveyed stated their health as poor, 26% as good, 40% as very good, and 19% as excellent. A health professional in Chicago wanted to determine if people in Chicago had similar feelings toward their healt..
Sketch the distribution of Stanford -Binet IQ test scores. Write the equation that gives the z score corresponding to a Stanford-Binet IQ test score. Sketch the distribution of such z scores.
For adults 60 years or older, they found a mean daily intake of 721 mg with a standard deviation of 454 mg. Using these values for the mean μ and standard deviation σ for the U.S. population:
New study is to use 90% confidence level. Estimate is to be within 1 percent of population proportion. Determine the essential sample size?
A citrus company is interested in evaluating the performance of two orange juice extractors, A and B. It is believed that both the size and the variety of the fruit yield in the test may influence the yields (percentage juice by weight) obtained f..
If gambler rolls two dice and gets sum of four, he wins $10; and if he gets sum of three, he wins $25. Cost to play game is $5. What is expectation of this game?
Define mixed method research and describe its strengths. Provide an example of when it is appropriate to apply mixed method research in the human services field. Summarize how scientifically sound research supports the function of a human services..
Draw a box-and-whisker plot for the data set. Find the variance and the standard deviation. please help me as soon as possible please!!! thank you
What are the hypotheses we would want to test for the Kleenex case?
What proportion of sample means would be between 1.31 and 1.33 inches?
Determine the confidence interval for population mean and the Superintendent wants to determine the average amount of hours per week the student population studies at home.
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