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Show your work. Homework for week 3 1) The sum of differences of a set of scores about the mean of those scores is always ____________ a. greater than the mean b. zero c. unity d. equal to the mean e. dependent on the shape of the distribution 2) In Massachusetts, eight individuals experienced an unexplained episode of vitamin D intoxication; it was thought that these unusual occurrences might be the result of excessive intake of dairy milk. Blood levels of calcium and albumin-a type of protein- for each subject at the time of hospital admission are provided below. Calculate the following statistics for calcium levels of people in the study. a. MEAN: ___3.1425________ b. MEDIAN: _______3.08_________ c. RANGE: ____1.48____________ d. VARIANCE: ___0.228__________ e. STANDARD DEVIATION: ___.511_________ Calculate the following statistics for albumin levels of people in the study. Mean: 40.375 Median: 42 Range: 10 Variance: 7.984 Standard Deviation: 2.8626 Thought exercise: If your objective was to determine whether excessive milk consumption was associated with the cases of vitamin D intoxication, would this be sufficient? If not, what additional information would you like to have? 1/3

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