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