1.23. The union bureau of the faculty, consisting of 9 people, at its meeting must elect a chairman, his deputy and treasurer. How many different cases can there be? (Answer: 504.)
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- 1.) I want to estimate the proportion of adults who like sci-fi movies. How many people should I poll to be 96% confident that I am within 1% of the population proportion?D. How many are enlisted or have a civilian marriage? E. How many are neither enlisted nor have a civilian marriage? F. How many do not have a joint service marriage?A corporation must appoint a president, chief executive officer (CEO), chief operating officer (COO), and chief financial officer (CFO). It must also appoint a planning committee with fivedifferent members. There are 13qualified candidates, and officers can also serve on the committee. Complete parts (a) through (c) below. a. How many different ways can the officers be appointed? There are different ways to appoint the officers. b. How many different ways can the committee be appointed? There are nothing different ways to appoint the committee. c. What is the probability of randomly selecting the committee members and getting the five youngest of the qualified candidates? P(getting the five youngest of the qualified candidates)equals=nothing (Type an integer or a simplified fraction.)
- C. Evaluate the following 1. P(, 10) 4. P(15, 1) 2. P() 5. P(1,7) 3. P(s)A corporation must appoint a president, chief executive officer (CEO), chief operating officer (COO), and chief financial officer (CFO). It must also appoint a planning committee with five different members. There are 17 qualified candidates, and officers can also serve on the committee. Complete parts (a) through (c) below. a. How many different ways can the officers be appointed? There are different ways to appoint the officers. b. How many different ways can the committee be appointed? There are different ways to appoint the committee. c. What is the probability of randomly selecting the committee members and getting the five youngest of the qualified candidates? P(getting the five youngest of the qualified candidates) = (Type an integer or a simplified fraction.)A corporation must appoint a president, chief executive officer (CEO), chief operating officer (C0), and chief financial officer (CFO). It must also appoint a planning committee with four different members. There are 16 qualified candidates, and officers can also serve on the committee. Complete parts (a) through (c) below. a. How many different ways can the officers be appointed? There are different ways to appoint the officers. b. How many different ways can the committee be appointed? There are || different ways to appoint the committee. c. What is the probability of randomly selecting the committee members and getting the four youngest of the qualified candidates? P(getting the four youngest of the qualified candidates) =| (Type an integer or a simplified fraction.)
- 5. A vote is to be taken among the residents of a town and the surrounding county to determine whether a proposed chemical plant should be constructed. The construction site is within the town limits, and for this reason many voters in the county believe that the proposal will pass because of the large proportion of town voters who favor the construction. To determine if there is a significant difference in the proportions of town voters and county voters favoring the proposal, a poll is taken. If 120 of 200 town voters favor the proposal and 240 of 500 county residents favor it, would you agree that the proportion of town voters favoring the proposal is higher than the proportion of county voters? Use an α = 0.05 level of significance.23. The Ice Chalet offers dozens of different beginning ice-skating classes. All of the class names are put into a bucket. The 5 P.M., Monday night, ages 8 to 12, beginning ice-skating class was picked. In that class were 64 girls and 16 boys. Suppose that we are interested in the true proportion of girls, ages 8 to 12, in all beginning ice-skating classes at the Ice Chalet. Assume that the children in the selected class are a random sample of the population.Construct a 92% Confidence Interval for the true proportion of girls in the ages 8 to 12 beginning ice-skating classes at the Ice Chalet.Calculate the following. (Round your answers to two decimal places.) (a) lower limit________________(b) upper limit_______________(c) error bound _______________2. An emergency committee consisting of 12 health's officer staffs is chosen from 10 doctors and 12 nurses. Calculate the number of ways the committee is made up of: a. 5 doctors and 7 nurses. b. not more than 6 doctors. c. at least 3 doctors and 4 nurses.
- 2. Which of the following groups of students at Oxnard College would be smallest? Students that are taking a history class. Students that are taking a math class. Students that are taking a history class or a math class. Students that are taking a history class and a math class.5. Assume that 11% of a particular city population is left handed and that the number of left handers is 350,000. What is the population of the city?4.6
