Add 10 to each of the scores in Question 4.4 (1, 3, 4, 4) to produce a new distribution (11, 13, 14, 14). Would you expect the value of the sample standard deviation to be the same for both the original and new distributions? Explain your answer, and then calculate s for the new distribution.
Answer to relevant QuestionsAdd 10 to only the smallest score in Question 4.4 (1, 3, 4, 4) to produce another new distribution (11, 3, 4, 4). Would you expect the value of s to be the same for both the original and new distributions? Explain your ...For the normal distribution of burning times of electric light bulbs, with a mean equal to 1200 hours and a standard deviation equal to 120 hours, what burning time is identified with the (a) Upper 50 percent? (b) Lower 75 ...Assume that an r of 2 .80 describes the strong negative relationship between years of heavy smoking (X) and life expectancy (Y). Assume, furthermore, that the distributions of heavy smoking and life expectancy each have the ...In a school population, assume that the probability of being white equals .40; black equals .30; Hispanic equals .20; and Asian- American equals .10. What is the probability of (a) A student being either white or black. (b) ...If we took a random sample of 35 subjects from some population, the associated sampling distribution of the mean would have the following properties (true or false). (a) Shape would approximate a normal curve. (b) Mean would ...
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