Question 4 1 pts USE THE INFORMATION BELOW TO ANSWER PROBLEMS 4 THROUGH 7. A gambler has developed two strategies for betting in the game of blackjack. To test these strategies, he decides to go gambling at Honest Bob's Casino. He plays ve sessions of blackjack using each of the two strategies [that is, the sample size for strategy 1 is 5 and the sample size for strategy 2 is also 5}. He then records his prot from the two strategies for each of the ve sessions (a negative prot indicates a loss). The goal of the gambler is to determine which of the two betting strategies will result in a higher mean prot. The 95% condence interval for the true mean prot for strategy 1 minus the true mean prot for strategy 2 is (-110. 34). Assume random samples were taken from populations that were normally distributed. Assume equal population variances. 4. Choose the best interpretation below for the condence interval in the problem. 0 We are 95% condent that the true mean prot for strategy 1 is greater than the true mean prot for strategy 2. Q We are 95% condent that there is no statistically signicant difference between the true mean prots for the two strategies. 0 We are 95% condent that the true mean prot for strategy 1 is less than the true mean prot for strategy 2. 0 Can't answer this question based on the information given. D Question 5 1 pts 5. Pick the formula used to calculate the confidence interval above. a) *# 2 in b) ( P - P2 ) + zy P. (1 - P. ) . P 2 (1 - P 2 ) n n2 C) ( x , - $ 2 ) + 1 1 52 + d) (x, -$2 ) + 1 52 n, O I choose option a) O I choose option b) O I choose option c) ( I choose option d)Question 6 1 pts 6. Pick the appropriate 2 or t value used in the above interval. 0 2.78 O 1.65 O 2.31 O 1.96 Question 7 1 pts 7. Which value is larger, the sample mean prot for strategy 1 or the sample mean prot from strategy 2? O The sample mean from strategy 1 is larger. 0 The sample mean from strategy 2 is larger. 0 They are the same