Quiz: Chapter 5 Quiz Question 6 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible Resume later Submit quiz Assume that when human resource managers are randomly selected, 44% say job applicants should follow up within two weeks. If 20 human resource managers are randomly selected, find the probability that exactly 12 of them say job applicants should follow up within two weeks. The probability is. (Round to four decimal places as needed.)Quiz: Chapter 5 Quiz Question 7 of 10 This quiz: 10 point(s) possible Resume later This question: 1 point(s) possible Next question Submit quiz Assume that hybridization experiments are conducted with peas having the property that for offspring, there is a 0.75 probability that a pea has green pods. Assume that the offspring peas are randomly selected in groups of 22. Complete parts (a) through (c) below. a. Find the mean and the standard deviation for the numbers of peas with green pods in the groups of 22. The value of the mean is u = peas. (Type an integer or a decimal. Do not round.) The value of the standard deviation is o = peas. Round to one decimal place as needed.) b. Use the range rule of thumb to find the values separating results that are significantly low or significantly high. Values of peas or fewer are significantly low. (Round to one decimal place as needed.) Values of peas or greater are significantly high. (Round to one decimal place as needed.) c. Is a result of 19 peas with green pods a result that is significantly high? Why or why not? The result significantly high because 19 peas with green pods is peas. (Round to one decimal place as needed.)Quiz: Chapter 5 Quiz Question 7 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible Resume later Submit quiz Assume that hybridization experiments are conducted with peas having the property that for offspring, there is a 0.75 probability that a pea has green pods. Assume that the offspring peas are randomly selected in groups of 22. Complete parts (a) through (c) below. a. Find the mean and the standard deviation for the numbers of peas with green pods in the groups of 22. The value of the mean is u = peas. (Type an integer or a decimal. Do not round.) The value of the standard deviation is o = peas. Round to one decimal place as needed.) b. Use the range rule of thumb to find the values separating results that are significantly low or significantly high. Values of peas or fewer are significantly low. (Round to one decimal place as needed.) Values of peas or greater are significantly high. Round to one decimal place as needed.) c. Is a result of 19 peas with green pods a result that is significantly high? Why or why not? The result significantly high because 19 peas with green pods is peas. Round to : as needed.) is not isQuiz: Chapter 5 Quiz Question 7 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible Resume later Submit quiz Assume that hybridization experiments are conducted with peas having the property that for offspring, there is a 0.75 probability that a pea has green pods. Assume that the offspring peas are randomly selected in groups of 22. Complete parts (a) through (c) below. a. Find the mean and the standard deviation for the numbers of peas with green pods in the groups of 22. The value of the mean is u = peas. (Type an integer or a decimal. Do not round.) The value of the standard deviation is o = peas. (Round to one decimal place as needed.) b. Use the range rule of thumb to find the values separating results that are significantly low or significantly high. Values of peas or fewer are significantly low. (Round to one decimal place as needed.) Values of peas or greater are significantly high. (Round to one decimal place as needed.) c. Is a result of 19 peas with green pods a result that is significantly high? Why or why not? The result significantly high because 19 peas with green pods is peas. (Round to one decimal place as needed.) greater than less than equal to Vi MoreQuiz: Chapter 5 Quiz Question 8 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible Resume later Submit quiz Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a girl, but assume that the method has no effect, so the probability of a girl is 0.5. Assume that the groups consist of 35 couples. Complete parts (a) through (c) below. a. Find the mean and the standard deviation for the numbers of girls in groups of 35 births. The value of the mean is u =]. (Type an integer or a decimal. Do not round.) The value of the standard deviation is o =]. (Round to one decimal place as needed.) b. Use the range rule of thumb to find the values separating results that are significantly low or significantly high. Values of girls or fewer are significantly low. (Round to one decimal place as needed.) Values of girls or greater are significantly high. (Round to one decimal place as needed.) c. Is the result of 30 girls a result that is significantly high? What does it suggest about the effectiveness of the method? The result significantly high, because 30 girls is girls. A result of 30 girls would suggest that the method (Round to ( as needed.) is is notQuiz: Chapter 5 Quiz Question 8 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible Resume later Submit quiz Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a girl, but assume that the method h effect, so the probability of a girl is 0.5. Assume that the groups consist of 35 couples. Complete parts (a) through (c) below. a. Find the mean and the standard deviation for the numbers of girls in groups of 35 births. The value of the mean is u =. (Type an integer or a decimal. Do not round.) The value of the standard deviation is o =. (Round to one decimal place as needed.) b. Use the range rule of thumb to find the values separating results that are significantly low or significantly high. Values of girls or fewer are significantly low. (Round to one decimal place as needed.) Values of girls or greater are significantly high. (Round to one decimal place as needed.) c. Is the result of 30 girls a result that is significantly high? What does it suggest about the effectiveness of the method? The result significantly high, because 30 girls is girls. A result of 30 girls would suggest that the method (Round to one decimal place as needed.) equal to less than greater thanQuiz: Chapter 5 Quiz Question 8 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible Resume later Submit quiz Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a girl, but assume that the method has no effect, so the probability of a girl is 0.5. Assume that the groups consist of 35 couples. Complete parts (a) through (c) below. a. Find the mean and the standard deviation for the numbers of girls in groups of 35 births. The value of the mean is u =. (Type an integer or a decimal. Do not round.) The value of the standard deviation is o =]. (Round to one decimal place as needed.) b. Use the range rule of thumb to find the values separating results that are significantly low or significantly high. Values of girls or fewer are significantly low. (Round to one decimal place as needed.) Values of girls or greater are significantly high. (Round to one decimal place as needed.) c. Is the result of 30 girls a result that is significantly high? What does it suggest about the effectiveness of the method? The result significantly high, because 30 girls is girls. A result of 30 girls would suggest that the method (Round to one decimal place as needed.) is not effective. is effective.. _ . This quiz: 10 point(s) possible QUIZ. Chapter 5 QUIZ Quest n 9 of 10 This quest n: 1 minus) possible Submit quiz Based on a poll, among adults who regret getting tattoos, 18% say that they were too young when they got their tattoos. Assume that four adults who regret getting tattoos are randomly selected, and nd the indicated probability. Complete parts (a) through (d) below. a. Find the probability that none of the selected adults say that they were too young to get tattoos. (Round to tour decimal places as needed.) b. Find the probability that exactly one of the selected adults says that he or she was too young to get tattoos. (Round to tour decimal places as needed.) c. Find the probability that the number of selected adults saying they were too young is 0 or 1. (Round to four decimal places as needed.) d. If we randomly select four adults, is 1 a signicantly low number who say that they were too young to get tattoos? E because the probability that E of the selected adults say that they were too young is i 0.05. Yes, N0. This quiz: 10 point(s) possible Questlon 9 Of 10 This question: 1 point(s) possible Submit quiz Based on a poll, among adults who regret getting tattoos, 18% say that they were too young when they got their tattoos. Assume that four adults who regret getting tattoos are randomly selected, and nd the indicated probability. Complete parts (a) through (d) below. 3. Find the probability that none of the selected adults say that they were too young to get tattoos. (Round to four decimal places as needed.) h. Find the probability that exactly one of the selected adults says that he or she was too young to get tattoos (Round to four decimal places as needed.) c. Find the probability that the number of selected adults saying they were too young is 0 or 1. (Round to four decimal places as needed) d. If we randomly select four adults, is 1 a signicantly low number who say that they were too young to get tattoos? l: because the probability that E of the selected adults say that they were too young is V 0.05. at least 1 less than 1 exactly 1 more than 1 at most 1 This quiz: 1O point(s) possible QUIZ: Chapter 5 Qu'z Quemion 9 M10 This question: 1 point(s) possible Submlt quiz Based on a poll, among adults who regret getting tattoos, 18% say that they were too young when they got their tattoos, Assume that four adults who regret getting tattoos are randomly selected, and nd the indicated probability. Complete parts (a) through (d) below. a. Find the probability that none of the selected adults say that they were too young to get tattoos. (Round to four decimal places as needed.) b. Find the probability that exactly one of the selected adults says that he or she was too young to get tattoos. (Round to four decimal places as needed.) c. Find the probability that the number of selected adults saying they were too young is 0 or 1. (Round to four decimal places as needed.) d. If we randomly select four adults, is 1 a signicantly low number who say that they were too young to get tattoos? E because the probability that 7 of the selected adults say that they were too young is E 0.05. equal to less than greater than This quiz: 10 point(s) possible QUIZ: Chapter 5 QUIZ Ques'w" 10 Of 10 This question: 1 point(s) possible Submit quiz Households are randomly selected and partitioned into groups of four For those groups, the random variable x is the number of households with a printer. Determine whether a probability distribution is given. If a probability x P(x) Q distribution is given, nd its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satised. 0 0,023 1 0.146 2 0.342 3 0.353 4 0.136 Does the table show a probability distribution? Select all that apply. :I A. Yes, the table shows a probability distribution. :I B. No, the random variable x is categorical instead of numerical. :I c. No, not every probability is between 0 and 1 inclusive. :I D. No, the numerical values of the random variable x are not associated with probabilities. :I E. No, the sum of all the probabilities is not equal to 1. Find the mean of the random variable x. Select the correct choice below and, if necessary, ll in the answer box to complete your choice. O A- p= household(s) (Round to one decimal plaoe as needed.) 0 B. The table does not show a probability distribution. Find the standard deviation of the random variable x. Select the correct choice below and, if necessary, ll in the answer box to complete your choice. O A- o= household(s) (Round to one decimal place as needed.) O B. The table does not show a probability distribution