TRUE OR FALSE 10. The probability that a continuous random variable takes on a fixed value is always zero, whereas that of a discrete variable can be positive. 11. In interval estimation, decreasing the confidence coefficient results in a wider confidence interval. 12. If the test rejects Ho at 0.05 level of significance, then the test will likewise reject Ho at 0.10 level of significance.
TRUE OR FALSE 10. The probability that a continuous random variable takes on a fixed value is always zero, whereas that of a discrete variable can be positive. 11. In interval estimation, decreasing the confidence coefficient results in a wider confidence interval. 12. If the test rejects Ho at 0.05 level of significance, then the test will likewise reject Ho at 0.10 level of significance.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 9E
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TRUE OR FALSE
10. The probability that a continuous random variable takes on a fixed value is always zero, whereas that of a discrete variable can be positive.
11. In interval estimation , decreasing the confidence coefficient results in a wider confidence interval.
12. If the test rejects Ho at 0.05 level of significance, then the test will likewise reject Ho at 0.10 level of significance.
13. Consider the experiment of tossing a balanced coin. Let the random variable X be the number of tosses until a head occurs. Then X is a discrete random variable.
14. The region of rejection is affected by the form of the alternative hypothesis.
15. Two events are independent if P(A|B) = P(B).
16. There are 20 ways of answering a 10-question true-or-false exam.
17. The level of significance is the maximum probability of committing a Type I error.
18. Adding a constant to all observations will not change the coefficient of variation.
19. The mean and the median are always unique.
20. In all distributions, the 5th decile is always equal to the median.
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