Q1) 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. Find the expectation of this game?
Q2) Determine mean of given probability distribution?
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x
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p(x)
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1
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0.20
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2
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0.10
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3
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0.35
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4
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0.05
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5
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0.30
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Q3) As confidence level 1 - a increases, width of confidence interval.
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a) increases
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b) decreases
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c) remains the same
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d) None of the above
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Q4) P-value for test statistic is .085, determine the minimum level of significance needed to reject null hypothesis?
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a) 0.10
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b) 0.05
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c) 0.01
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d) 0.085
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Q5) F-distribution is:
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a) symmetric
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b) not symmetric, positively skewed
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c) not symmetric, negatively skewed
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d) None of the above.
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