Question 1.
Solutions:
lyn Heashp lsue Dale Thuneday, March 8,2018 Dse Date: Thersday, March 22, 2018 (1) (4 Pointe)...
Use Table 8.1, a computer or a calculator to answer the following. Suppose a candidate for public office is favored by only 47% of the voters. If a sample survey randomly selects 2,500 voters, the percentage in the sample who favor the candidate can be thought of as a measurement from a normal curve with a mean of 47% and a standard deviation of 1%. Based on this information, how often (as a %) would such a survey show that...
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?...
1:
find point of estimate
2: find margin of error
3: find confidence interval. round to 3 decimal places
please circle answers - thanks!!
In studying his campaign plans, Mr. Singleton wishes to estimate the difference between men's and women's views regarding his appeal as a candidate. He asks his campaign manager to take two random independent samples and find the 98% confidence interval for the difference. A random sample of 484 male voters and 577 female voters was taken....
1.) Assume that a sample is used to estimate a population proportion p. Find the margin of error m that corresponds to the given statistics and confidence level. Round the margin of error to four decimal places. 95% confidence; n = 380, x = 50 Group of answer choices 0.0340 0.0408 0.0306 0.0357 2.) Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. A researcher claims that 62% of voters favor gun control. Assuming that...
Please do all 3 problems 1. Find C(n, x)pxqn − xfor the given values of n, x, and p. (Round your answer to four decimal places.) n = 6, x = 5, p = 0.7 2.Let X be the number of successes in six independent trials of a binomial experiment in which the probability of success is p = 2/5. Find the following probabilities. (Round your answers to four decimal places.) (a) P(X = 5) (b) P(2 ≤ X ≤...
please show your calculations
You are given n = 8 measurements. 4, 1, 8, 7, 4, 6, 3, 6. (a) Calculate the range. (b) Calculate the sample mean, x 4.875 (c) Calculate the sample varlance, s2, and standard devlatlon, s. (Round your varlance to four declmal places and your standard devlation to two decimal places.) s2 9.4281 S 3.07 (d) Compare the range and the standard deviation. The range is approximately how many standard deviations? (Round your answer to two...
(1 point) (For the following question, use the methods described in lecture - do not use R prop.test(). You must use at least four decimal places for all intermediate calculations and your final answer) A poll is taken in which 373 out of 500 randomly selected voters indicated their preference for a certain candidate. (a) Find the "Large-Sample" 95% confidence interval for p. <p> (b) Find the margin of error for this 95% confidence interval for p. (c) Without doing...
(1 point) (For the following question, use the methods described in lecture - do not use R prop.test(). You must use at least four decimal places for all intermediate calculations and your final answer) A poll is taken in which 316 out of 525 randomly selected voters indicated their preference for a certain candidate. (a) Find the "Large-Sample" 90% confidence interval for p. sps (b) Find the margin of error for this 90% confidence interval for p. (c) Without doing...
1.) In the previous question (the one about the multiple-choice quiz), the random variable X is binomial with parameters: n = 1/5, p = 15 n = 15, p = 1/2 n = 15, p = 1/5 n = 15, p = 0 2.) Assume that a procedure yields a binomial distribution with a trial repeated n=5n=5 times. Use technology to find the probability distribution given the probability p=0.164p=0.164 of success on a single trial. (Report answers accurate to 4...
1. - 1.25 points StatsByL01 15.2A.004. My Notes Ask Your Teacher A student conducts a simple random sample of students from her high school and finds that 22 out of 110 students in her sample regularly walk to school. Give a point estimate for the proportion of all Students at her high school who regularly walk to school Submit Answer 2. -/1.25 points UHStat4 10.E.044. My Notes Ask Your Teacher For each combination of sample size and sample proportion, find...