Examinin Examinin Examinin Forming Conclusions. In Exercises 9-12, refer to the

Question

Examinin Examinin Examinin Forming Conclusions. In Exercises 9-12, refer to the exercise identified. Using only the rare event rule, make subjective estimates to determine wbether results are likely, then state a conclusion about the original claim. For example f the claim is that a coin favors heads and sample results consist of 11 heads in 20 flips, conclude that there is not sufficient evidence to support the claim that the coin favors heads (because it is easy to get 11 heads in 20 flips by chance with a fair coin). 9. Exercise 5 10. Exercise 6 11. Exercise 7 12. Exercise 8 to D.

Explanation / Answer

ans)) Rare event Rule: It states that incase of a given assumption, the probability of an observed event is exceptionally small, it implies that the assumption is incorrect. Also, any value greater than the cut-off limit of (5%) then it this case the assumption is correct.

ans5)) assumption claimed probability=0.20

Probability from survey=0.21,

Therefore from the use of rare event rule, the assumption is correct.

ans6))claimed probability of baby girls-0.5,

Experimental probability= number of girls borned/total borns

=879/945=0.93.

Experimental probability is greater then claimed value, hence claim is correct.

ans 7)) Mean pulse rate=76 or lowes,

Experimental pulse rate=77.5,

Therefore the assumption/claim is correct as the experimental value is greater than the mean claimed

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