Suppose 61 cars start at a car race. In how many ways can the top 3 cars finish the race? The number of different top three finishes possible for this race of 61 cars is. (Use integers for any number in the expression.) ...

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A: As per our guidelines we can solve first multiple-choice question and rest can be reposted. Q.12…

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A: Given that.   X~N( μ , ?)   μ=21.4     , ?=3.6   Z-score =( x - μ )/?

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A: a) The test hypotheses are: Null hypothesis: H0: μ = 110. Alternative hypothesis: H1: μ > 110.

Q: Your answers are saved automatically. ✓ Question Completion Status: QUESTION 1 In a standard normal…

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A: GIVEN DATA,margin of error =1%=0.01CI=0.95α=1-0.95=0.05Zc=Zα/2=Z0.05/2=Z0.025=1.96 [ from excel…

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Q: Suppose that X~N(μ, o²) and that P(X ≤ 5) = 0.8413 and P(X ≥ 3.6) = 0.6554, what are the values of u…

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A: It is given that  Blue marble = 5 Red marble = 3 Green marble = 2 Total marble = 10

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Q: 11. The number of consumers purchasing a particular item on a given day is found to be uniform over…

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A: From the provided information, Mean (µ) = 15.2 Standard deviation (σ) = 0.9 X~N (15.2, 0.9)

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A: we have to find sampling distribution of x¯ represents what value?

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Q: Raul received a score of 80 on a history test for which the class mean was 70 with standard…

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Q: 1. A bank operates a drive-up and walk-up window. Let X = the proportion of the time the drive-up…

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Q: Under what circumstances is the distribution of sample means definitely a normal distribution?

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A: Given,n=74p=0.42np=74×0.42=31.08>10and n(1-p)=74(1-0.42)=42.92>10

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A: Given  mean= 598, standard deviations=34, n=4

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Q: The proportion p of residents in a community who recycle has traditionally been 70%. A policy maker…

A: We have given that  Sample size n =250 Favorable cases x =156 Sample proportion p^=x/n  =156/250…