close to 0?5.62. Given the new regulations, suppose that 75% of the5.64 Illegal downloading, continued. Refer to ExerciseCanadian ISP subscribers will not reoffend after receivinga notice.(a) If you choose at random 15 subscribers who receiveda notice, what is the mean of the count X who will notreoffend? What is the mean of the proportion p in yoursample who will not reoffend?(b) Repeat the calculations in part (a) for samples ofsize 150 and 1500. What happens to the mean count of successes as the sample size increases? What happens tothe mean proportion of successes?naider the5.3

Answered: Image /qna-images/answer/b9edb97f-6d23-49b0-835d-f27addb7a0ed.jpg

Answered: close to 0? 5.64 Illegal downloading,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A poll found that 83% of people out of a survey of size 127 watch at least three hours of TV per day. What is the sample proportion? Submit Question 1 Previous
a.True or False: There will be more dispersion in the sampling distribution of the sample mean than in the population. b. State the standard error of the mean:
According to the latest research 91% of people are right handed. In a sample of 120 people, what is the mean of the number of right number of right handed people?
5. The NBA commissioner wishes to know how many hours per day NBA players watch TV. He sampled the following players Player Kobe hours 4. James 2 Shaq Rose 9. 1. .2 n-1 Find the mean and standard deviation for this sample
7. Researchers at the University of Mississippi wanted to determine whether the reaction time (in seconds) of males differed from that of females to a go/no go stimulus. The researchers randomly selected 20 females and 15 males to participate in the study. As described, is this an example of independent or dependent sampling? Explain your answer.
5. A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 702.9. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 32 high-income individuals and found the sample mean credit score to be 719.1 with a standard deviation of 80.6. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a = 0.05 level of significance. State the null and alternative hypotheses. Ho: H (1) H: μ (2) (Type integers or decimals. Do not round.) Identify the t-statistic. to = (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) Make a conclusion regarding the hypothesis. (3) the null…
1. Consider the following sample of numbers: 1, 4, 5, 4, 3, 4, 7, 8, 5, 9, 12, 13, 11, 2. (a) Find the sample mean. (b) Find the sample standard deviation.
24
2. The following are the numbers of minutes it took random samples of 8 men (group 1) and 5 women (group 2) to complete a written test given for the renewal of their driver's licences Men : 9.9, 7.4, 8.9, 9.1, 7.7,9.7, 11.8, 9.2 Women : 8.6, 10.9, 9.8, 10.7, 9.4 Use a nonparametric test to decide whether to accept the null hypothesis µ1 Hz against the alternative µ1 # µz at 0.05 level of significance.
One cable company advertises that it has excellent customer service. In fact, the company advertises that a technician will be there within 30 minutes of when a service call is placed. One frustrated customer believes this is not the truth, claiming that it takes over 30 minutes for the cable repairman to arrive. The customer asks 15 of his neighbors how long it has taken for the cable repairman to arrive when they have called for him. The sample mean for this group is 32.2 minutes with a sample standard deviation of 3.6 minutes. Test the customer’s claim at the 0.02 level of significance. (a) State the null and alternative hypotheses (b) Find the value of your test statistic. Draw a picture and label its location on the normal curve. Also shade the area where you will find the p-value. (c) Calculate the p-value from the sample data. Compare it to the significance level. Label it’s value and location on your bell curve (d) Write a full…
18. The governor of New York has banned selling or purchasing "large" soft drinks, where a "large" is defined as being more than 16 oz. Sonic, famous for its Route 44 drinks is interested in estimating the proportion of New Yorkers that favor this ban. From a random survey of 800 New Yorkers, 375 answered no to the question, “Do you favor the governor's ban on 'large' soft drinks?" a. Find a 97.5% confidence interval for the proportion of New Yorkers who favor the ban on "large" soft drinks. b. Interpret the confidence interval. c. Can you conclude with 97.5% confidence that a majority of New Yorkers favor the ban on "large" soft drinks? Why or why not. d. Without doing any other calculations, can you be 99% confident that a majority of New Yorkers favor the ban on “large" soft drinks?
Construct a sample (with at least two different values in the set) of 5 measurements whose mean is equal to the median. If this is not possible, indicate "Cannot create sample".

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