Homework Answers
Add Answer to:
3. A study of community college enrollments in a certain state finds that 60% of all...
1. Questions 1 - 3 refer to the following: At a community college, 46% of students...
1. Questions 1 - 3 refer to the following: At a community college, 46% of students are registered to vote. Suppose that a random sample of 25 students at the college are selected. Find the probability that exactly 8 students are registered to vote Group of answer choices 0.0612 0.32 0.9388 0.1135 2.Questions 1-3 refer to the following: At a community college, 46% of students are registered to vote. Suppose that a random sample of 25 students at the college...
Suppose that of all registered voters in a certain state favor banning the release of information...
Suppose that of all registered voters in a certain state favor banning the release of information from ect polls in presidential elections until after the poils in that state dose. A random sample of 25 registered voters is to be selected. Let x-number of registered voters in this random sample who favor the ban. (Use Table 9 in Appendix A. Round your answers to three decimal places) (a) What is the probability that more than 20 voters favor the ban?...
A random sample of 31 students at a community college showed an average age of 25...
A random sample of 31 students at a community college showed an average age of 25 years. Assume the ages of all students at the college are normally distributed with a standard deviation of 1.8 years The 98% confidence interval for the average age of all students at this college is (Round your answers to 3 decimal places.) 1 Point Answer From 24.248 To 25.752
In a certain state, 36.2% of all community college students belong to ethnic minorities. Find the...
In a certain state, 36.2% of all community college students belong to ethnic minorities. Find the probabilities of the following results in a random sample of 10 of the community college students. a. Exactly 2 belong to an ethnic minority. b. Three or fewer belong to an ethnic minority. c. Exactly 6 do not belong to an ethnic minority. d. Six or more do not belong to an ethnic minority. a. P(2) = (Round to four decimal places as needed.)...
At a local community college, 60% of students who enter the college as freshmen go on...
At a local community college, 60% of students who enter the college as freshmen go on to graduate. Six freshmen are randomly selected a. Whet is the probability that none of them graduates from the local community college? (Do not round Intermediate calculations. Probability b. What is the probability that at most five will graduate from the local community college? (Do not round intermediate calculations. Round your final answer to 4 decimal places.) c. What is the expected number that...
At a local community college, 60% of students who enter the college as freshmen go on...
At a local community college, 60% of students who enter the college as freshmen go on to graduate. Six freshmen are randomly selected. a. What is the probability that none of them graduates from the local community college? (Do not round intermediate calculations. Round your final answer to 4 decimal places.) b. What is the probability that at most five will graduate from the local community college? (Do not round intermediate calculations. Round your final answer to 4 decimal places.)...
Dean Halverson recently read that full-time college students study 20 hours each week. She decides to...
Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her university to see if there is evidence that students study an average of less than 20 hours each week. A random sample of 33 students were asked to keep a diary of their activities over a period of several weeks. It was found that he average number of hours that the 33 students studied each week was 17.7 hours....
A certain state has the highest high school graduation rate of all states at 85%. A....
A certain state has the highest high school graduation rate of all states at 85%. A. In a random sample of 10 high school students from the state, what is the probability that 8 will graduate? B. In a random sample of 10 high school students from the state, what is the probability than 7 or fewer will graduate? C. What is the probability that at least 8 high school students in our sample of 10 will graduate? Show work...
1. Scores on a certain nationwide college entrance examination follow a normal distribution with a mean...
1. Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 500 and a standard deviation of 100. Find the probability that a student will score (a) over 650. Answer: (b) less than 459. Answer: (C) between 325 and 675. Answer: (d) If a school only admits students who score over 680, what proportion of the students pool would be eligible for admission? Answer: (e) What limit (score) would you set that makes the...
(6 points) Cars on Campus. Statistics students at a community college wonder whether the cars belonging to students are...
(6 points) Cars on Campus. Statistics students at a community college wonder whether the cars belonging to students are, on average, older than the cars belonging to faculty. They select a random sample of 23 cars in the student parking lot and find the average age to be 8.5 year with a standard deviation of 5.3 year. A random sample of 23 cars in the faculty parking lot have an average age of 3.4 years with a standard deviation of...
1. Questions 1 - 3 refer to the following: At a community college, 46% of students are registered to vote. Suppose that a random sample of 25 students at the college are selected. Find the probability that exactly 8 students are registered to vote Group of answer choices 0.0612 0.32 0.9388 0.1135 2.Questions 1-3 refer to the following: At a community college, 46% of students are registered to vote. Suppose that a random sample of 25 students at the college...
Suppose that of all registered voters in a certain state favor banning the release of information from ect polls in presidential elections until after the poils in that state dose. A random sample of 25 registered voters is to be selected. Let x-number of registered voters in this random sample who favor the ban. (Use Table 9 in Appendix A. Round your answers to three decimal places) (a) What is the probability that more than 20 voters favor the ban?...
A random sample of 31 students at a community college showed an average age of 25 years. Assume the ages of all students at the college are normally distributed with a standard deviation of 1.8 years The 98% confidence interval for the average age of all students at this college is (Round your answers to 3 decimal places.) 1 Point Answer From 24.248 To 25.752
In a certain state, 36.2% of all community college students belong to ethnic minorities. Find the probabilities of the following results in a random sample of 10 of the community college students. a. Exactly 2 belong to an ethnic minority. b. Three or fewer belong to an ethnic minority. c. Exactly 6 do not belong to an ethnic minority. d. Six or more do not belong to an ethnic minority. a. P(2) = (Round to four decimal places as needed.)...
At a local community college, 60% of students who enter the college as freshmen go on to graduate. Six freshmen are randomly selected a. Whet is the probability that none of them graduates from the local community college? (Do not round Intermediate calculations. Probability b. What is the probability that at most five will graduate from the local community college? (Do not round intermediate calculations. Round your final answer to 4 decimal places.) c. What is the expected number that...
At a local community college, 60% of students who enter the college as freshmen go on to graduate. Six freshmen are randomly selected. a. What is the probability that none of them graduates from the local community college? (Do not round intermediate calculations. Round your final answer to 4 decimal places.) b. What is the probability that at most five will graduate from the local community college? (Do not round intermediate calculations. Round your final answer to 4 decimal places.)...
1. Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 500 and a standard deviation of 100. Find the probability that a student will score (a) over 650. Answer: (b) less than 459. Answer: (C) between 325 and 675. Answer: (d) If a school only admits students who score over 680, what proportion of the students pool would be eligible for admission? Answer: (e) What limit (score) would you set that makes the...
(6 points) Cars on Campus. Statistics students at a community college wonder whether the cars belonging to students are, on average, older than the cars belonging to faculty. They select a random sample of 23 cars in the student parking lot and find the average age to be 8.5 year with a standard deviation of 5.3 year. A random sample of 23 cars in the faculty parking lot have an average age of 3.4 years with a standard deviation of...
Most questions answered within 3 hours.
-
4) Management cannot influence the price of a new product. The
market price is $100 per...
asked 1 minute from now -
A 1.8 kg block with an initial velocity of 1.2 m/s slides to a
stop in...
asked 49 seconds ago -
Give the delta S, and delta H (heat of fusion) for ice melting
at STP. Use...
asked 5 minutes ago -
Calculate the root-mean-square velocity of nitrogen gas at 273
K.
asked 6 minutes ago -
Assume total cholesterol value for a certain population is
approximately bell shaped with a mean of...
asked 29 minutes ago -
Find the duration of a bond with settlement date June 10, 2012,
and maturity date December...
asked 36 minutes ago -
Let's go back to your long lost rich uncle who passed away in
weeks 1 and...
asked 50 minutes ago -
1. Compare and contrast acquired immune deficiency syndrome and
primary immune deficiency.
Make sure I can...
asked 1 hour ago -
Two 2.0-cm-diameter disks face each other, 3.0 mm apart. They
are charged to ± 18 nC...
asked 1 hour ago -
Varmit-B-Gone is a pest control service that operates in a
suburban neighborhood. The company attempts to...
asked 1 hour ago -
Which of the following is an advantage of direct investment?
There is no risk of devalued...
asked 1 hour ago -
The combination of an applied force and a constant frictional
force produces a constant total torque...
asked 1 hour ago