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% of U.S. adults think that political correctness is a problem in America today. You randomly select six U.S. adults and ask them whether they think that political correctness is a problem in America today. The random variable represents the number of U.S. adults who think that political correctness is a problem in America today. Answer the questions below. Find the mean of the binomial distribution (Round to the nearest tenth as needed) et Find the variance of the binomial distribution (Round to the nearest tenth as needed) e Find the standard deviation of the binomial distribution verl the ơrD(Round to the nearest tenth as needed) Interpret the results in the context of the real-life situation. Most samples of 6 adults would differ from the mean by no more than
General
6 months ago
A study was conducted to examine whether the proportion of females was the same for five groups (Groups A, B, C, D, and E). How many degrees of freedom would the χ2 test statistic have when testing the hypothesis that the proportions in each group are all equal? a. 1 b. 4 c. 5 d. 0.20
General
6 months ago
Two pennies, a nickel, and a dime are placed in a cup. You draw a first coin and then a second coin.a. Assuming you are sampling without replacement (i.e. you do NOT replace the first coin before taking the second), write the sample space of all ordered pairs of letters P, N, and D that represent the outcomes, and give the appropriate weights for each element of the sample space.b. What is the probability of getting 11 cents?
General
6 months ago
A random sample of 49 measurements from one population had a sample mean of 15, with sample standard deviation 5. An independent random sample of 64 measurements from a second population had a sample mean of 18, with sample standard deviation 6. Test the claim that the population means are different. Use level of significance 0.01
General
6 months ago
If a time series plot exhibits a horizontal pattern, then a. the data fluctuates around the variable mean. b. it is evident that the time series is stationary. c. there is still not enough evidence to conclude that the time series is stationary. d. there is no relationship between time and the time ser
General
6 months ago
Pumps A, B and C operate at their respective constant rates. Pumps A and B, simultaneously, can fill a certain tank in 6/5 hours. Pump A and C, operating simultaneously, can fill the tank in 3/2 hours; abd pumps B and C, operating simultaneously, can fill the tank in 2 hours. How many hours does it take pumps A, B, and C, operating simultaneously, to fill the tank?(A) 1/3(B) 1/2(C) 2/3(D) 5/6(E) 1
General
6 months ago
Your family goes to a restaurant for dinner. There are 7 people in your family. Some order the chiken dinner for $ 12 dollars and some order the steak dinner for $ 17 dollars. If the bill was $ 109 dollars, how many people ordered each dinner?
General
6 months ago
Jon is looking into a $4,250 vacation package that is offered for 25% off. There is a 9% resort fee added on to the total. How much will the vacation cost Jon.
General
6 months ago
Tammy makes $ 7 per hour plus $4 for each item she sells, and lisa makes $10 per hour plus 3.00 for each item she sells. in an hour , how many items do they need to sell to make the same amount of money?show steps
General
6 months ago
GETS BRAINILIST!!!!!!What is the length of the line segment PQ on the coordinate grid? A fourquadrant coordinate grid from negative 50 to positive 50 in increments of 10 is drawn. Point P is plotted on the ordered pair negative 20, 10. Point Q is plotted on the ordered pair 10, 10. The points are connected by a line. 20 units 30 units 40 units 50 units
General
6 months ago
Solve the system : x = 2 - y and 3x + 3y = 6a) ( 4, -2 )b) ( 1, 1 )c) Parallel linesd) Coincident lines
General
6 months ago
Consider two consecutive positive integers such that the square of the second integer added to 3 times the first is equal to 85
General
6 months ago
A survey study is to be made to estimate the proportion of residents of a certain suburb who favor the construction of a public park near the suburb. The survey will ask at least 30 residents about their opinion regarding the construction. How large a sample is needed if one wishes to be at least 95% confident that the estimate is within 0.04 of the true proportion of residents favoring the construction of the public park?
General
6 months ago
From a random sample of 87 us adults with no more than a high school education that mean weekly income is 678 with a sample standard deviation of 197 from another random sample of 73 us adults with no more than a bachelor's degree the mean weekly income is 1837 with a standard deviation of $328 construct pain 95% confidence interval for the mean difference in the weekly income levels between us adults with no more than a high-school diploma and those with no more than a bachelor's degree there are a hundred 13 degrees of freedom in the appropriate probability distribution
General
6 months ago
The mean number of English courses taken in a two-year time period by male and female college students is believed to be about the same. An experiment is conducted and data are collected from 29 males and 16 females. The males took an average of two English courses with a standard deviation of 0.7. The females took an average of three English courses with a standard deviation of 0.9. Are the means statistically the same? (Useα = 0.05)a) State the distribution to use for the test. (Enter your answer in the form z or tdf where df is the degrees of freedom. Round your answer to two decimal places.)b) What is the test statistic? (If using the z distribution round your answer to two decimal places, and if using the t distribution round your answer to three decimal places.)t=___________c) What is the p-value? (Round your answer to four decimal places.)
General
6 months ago
In 1990, the cost of tuition at a large Midwestern university was $98 per credit hour. In 1997, tuition has risen to $168 per credit hour. Determine a linear function C ( x ) to represent the cost of tuition as a function of x , the number of years since 1990.In the year 2004, tuition will be ________ per credit hour.In the year__________ tuition will be $456 per credit hour.
General
6 months ago
The boat shown in the accompanying figure is 3 miles from both lighthouses and the angle between the line of sight is 20 degrees. Find the distance between the lighthouses
General
6 months ago
Suppose the relationship between X and Y is proportional when X is 5, why is 75 identify the constant of proportionality of x to y suppose the relationship between X and Y is proportional. When X is 5, why is 75. Identify the constant of proportionality of x to y
General
6 months ago
What is the solution set of the compound inequality x+1<-2x+11<3x+5
General
6 months ago
Which graph shows the solution to the following system of linear inequalities?−3x − 3y < −3y ≤ −x + 1
General
6 months ago
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