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Question: GRADE DISTRIBUTIONS The grade distribution for a certain class is shown in the following table. Find the probability distribution associated with these data.
Statistics and Probability, Statistics
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1) Let Z be a standard normal random variable with mean = 0 and standard deviation = 1. Us the normal table to find the following answers. a) P(0 b) P(-1.22 c) Find the value Z 0 such that P(0 0 )= 0.4901. 2) On a typic ...
A test of the null hypothesis H 0 : μ = μ 0 gives test statistic z = -0.58 (Round your answers to four decimal places.) a) What is the P -value if the alternative is H a : μ > μ 0 ? b) What is the P -value ...
A study shows that 81% of the population of all calculus students consider calculus an exciting subject. Suppose 34 students are independently selected from the population. If the true percentage is really 81%, find the ...
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