# Please answer all 3 questions 10. Question 12 1 pts In a poker game there is...

###### Question:

10.
Question 12 1 pts In a poker game there is a 68% chance that you will earn a $100 profit on a certain$20 bet, and there is a 32% chance you will lose your $20 bet. What is the expected value for this bet? O$29 O $32.50$61.60 0 $74.4 0-$36 0. None of these
and open/use click the little magnify icon) the following 5 for this exam: z-table and t-table, a Question 11 1 pts If a researcher decides to use a 2% significance level for a hypothesis test instead of a 10% level and he/she keeps everything else the same, what effect will this have on the hypothesis test? The typel error likelihood will decrease, but the type II error likelihood will increase. O The type l error likelihood will increase, but the type Il error likelihood will decrease. Both the type I and II error rates will increase. O Both the type I and II error rates will decrease. O None of these
Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. a=0.1 for a test of u = 122. O +1.4805 O +2.576 O +1.645 O +2.052 O +2.33 O None of these

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