In a y test of independence, what is the null hypothesis?..O A. The null hypothesis is that the random variables are dependentO B. The null hypothesis is that each element of each set has the same probability of occurrence.O C. The null hypothesis is that there is an association.O D. The null hypothesis is that there is not an association.alTime Remaining: 01:10:58Nextdoc49°F Light ra.

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Answered: In a x test of independence, what is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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1. (Witmer book – Page 116, Q: 3.6.12) Childhood lead poisoning is a public health concern in the United States. In a certain population, 1 child in 8 has a high blood lead level (defined as 30 µg/dl or more). In a randomly chosen group of 16 children from the population, what is the probability that a. None has high blood lead? b. 1 has high blood lead? c. 2 have high blood lead? d. 3 or more have high blood lead? Hint: Use parts a – c to help you answer.
Two people, A and B, are competing for the control of a corporation. The probabilities that these two people will win are 0.7 and 0.3, respectively. If A wins, the probability of introducing a new product is 0.8; if B wins, the corresponding probability is 0.4. a) What is the probability that a new product will be introduced? b) If a new product is introduced, what is the probability that B won the competition?
An experiment is conducted for which the sample space is S= {s, s, S,,s,S5}. Is the following probability assignment possible for this experiment? Outcomes S1 S2 S3 SA $5 1 Probabilities 1 1 4 8 10 12 Is the probability assignment possible for this experiment? O A. Yes, because both rules for an acceptable probability assignment are satisfied. O B. No, because the sum of the probabilities of all possible outcomes is not 1. O C. No, because not all of the probabilities are between 0 and 1, inclusive. O D. No, because the probabilities are given as fractions instead of decimals. O E. No, because none of the rules for an acceptable probability assignment are satisfied.
20. If the B column of your Z Table disappeared, which of the following could be used to determine B column probabilities? (hint: to help yourself, draw these choices) a. D column - .5000 b. C column - .5000 c. 1-D column d. 1-C column
Which of the following statements is always true? A. It is always appropriate to use the classical method to determine the probability of each outcome of an experiment. B. When computing the number of ways to randomly draw 5 marbles out of 20 marbles (without replacement) where the order does not matter, we should use the permutation rule. C. When two events A and B are mutually exclusive, then P(AnB) = P(A) + P(B). D. When two events A and B are independent, then P(A|B') = P(A), where BC represents the complement of B.
Components of a certain type are shipped to a supplier in batches of ten. Suppose that 50% of all such batches contain no defective components, 30% contain one defective component, and 20% contain two defective components. Two components from a batch are randomly selected and tested. What are the probabilities associated with 0, 1, and 2 defective components being in the batch under each of the following conditions?a. Neither tested component is defective.b. One of the two tested components is defective. [Hint: Draw a tree diagram with three first-generation branches for the three different types of batches.]
The probability that a randomly chosen male has a blood circulation problem is 0.25. Subjects can either have a blood circulation problem (C) or not have a problem (CC). Males who have a circulation problem are twice as likely to be smokers as those who do not have a circulation problem. Subjects can either be a smoker (S) or be a non-smoker (SC). 1. What is the conditional probability that a male has a circulation problem, given that they are a smoker (that is P(C|S))?
Please answer part C
18.18 Colors of M&Ms. If you draw an M&M candy at random from a bag of the candies, the candy you draw will have one of six colors. The probability of drawing each color depends on the proportion of each color among all candies made. a. Here are the probabilities of each color for a randomly chosen plain M&M produced at the New Jersey factory: Color: Blue Orange Green Yellow Red Brown Probability: 0.250 0.250 0.125 0.125 0.125 ? What must be the probability of drawing a brown candy? b. The probabilities for plain M&Ms produced at the Tennessee factory are a bit different. Here they are: Color: Blue Orange Green Yellow Red Brown Probability: 0.207 0.205 0.198 0.135 0.131 ? What is the probability that an M&M chosen at random from the Tennessee factory is brown? c. What is the probability that a plain M&M from the New Jersey factory is any of blue, yellow, or orange? What is the probability that a plain M&M from the Tennessee factory has one of these colors?

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