Create real life problem situations in psychological field that illustrates the use of each of the following probability and non- probability sampling techniques. 5. Convenience Sampling
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Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…
A: a simple random sample of 30 adult Americans n = 30
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Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…
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Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…
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Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…
A: Given that n =30 and p=0.20.
Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…
A: Given that a)The 20% of researchers must ask____ more American adults is
Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…
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Q: n the 2004 election in Utah, 66% of all Utah voters voted for Amendment 3, the marriage amendment.…
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Q: p-hat, the sample proportion of adults who respond yes, is approximately normal, how many more…
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Q: Create real life problem situations in psychological field that illustrates the use of each of the…
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Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…
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Q: (a) 15% of all adult Americans support the changes (b) 20% of all adult Americans support the…
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Q: reate real life problem situations in psychological field that illustrates the use of each of the…
A: There are probability and non probability sampling techniques.
Q: Question. 18
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A: Given, Prop. of males = 0.50 Prop. of females = 0.68
Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…
A: From the provided information, Sample size (n) = 35
Q: uppe
A: First question: We are given; Minimum data point=21Maximum data point=110Number of classes=8Lowest…
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- Fishing: Northern Pike Athabasca Fishing Lodge is located on Lake Athabasca in northern Canada. In one of its recent brochures, the lodge advertises that 75% of its guests catch northern pike over 20 pounds. Suppose that last summer 64 out of a random sample of 83 guests did, in fact, catch northern pike weighing over 20 pounds. Does this indicate that the population proportion of guests who catch pike over 20 pounds is different from 75% (either higher or lower)? Use a = 0.05. (c) Find the P-value of the test statistic. Sketch the sampling distribution and show the area corresponding to the P-value.You have been assigned to test the hypothesis that the average number of cars waiting in line for the drive-thru window during lunch hour differs between Chick-fil-A, Wendy's, and McDonald's. The following data show the number of cars in line during randomly selected times during the lunch hour at all three chains. Chick-fil-A(1) Wendy's(2) McDonald's(3) 7 7 6 10 8 7 11 5 6 8 3 7 9 2 9 Perform a one-way ANOVA using α = 0.05 to determine if a difference exists in the average number of cars waiting in line at the drive-thru during the lunch hour between these chains.Smoking is detrimental to health. The following shows the years of smoking and life expectancy at the age of 40 for 5 female employees working at Ernst & Young. Employee ? Anne Lena Ying Hyuna Sasha ?? 25 22 5 20 17 ?? 63 62 75 72 68 (i) Treating the data as a sample, compute ??? and ???. (ii) Treating the data as the population, compute ??? and ???.
- Create real life problem situations in psychological field that illustrates the use of each of the following probability and non- probability sampling techniques. 1. Stratified SamplingStatistics and Data AnalysisAre birthdays "evenly distributed" throughout the year, or are they more common during some parts of the year than others? Owners of a children's toy store chain in the Northwest asked just this question. Some data collected by the chain are summarized in the table below. The data were obtained from a random sample of 190 people. The birthdate of each person was recorded, and each of these dates was placed into one of four categories: winter (December 21-March 20), spring (March 21-June 20), summer (June 21-September 20), and fall (September 21-December 20). The numbers in the first row of the table are the frequencies observed in the sample for these season categories. The numbers in the second row are the expected frequencies under the assumption that birthdays are equally likely during each season of the year. The bottom row of numbers gives the following value for each of the season categories. Answer the following to summarize the test of the hypothesis that birthdays are equally…
- Part 1: The Goodness-of-fit test The problems in this section are taken directly from the course textbook. 1. A factory manager needs to understand how many products are defective versus how many are produced. The number of expected defects is listed in Table A. A random sample was taken to determine the actual number of defects. This information is contained in Table B below. Table A Number produced 0-100 101-200 201-300 301-400 401-500 Number defective 5 6 7 8 10 Number produced 0-100 101-200 (c) What are the degrees of freedom? 201-300 301-400 Table B 401-500 Number Defective 5 7 8 9 11 (a) Write out the null and alternative hypothesis. Use correct notation. Clearly label the claim. (b) Can a goodness-of-fit test be used? If your answer is, "yes," conduct the goodness-of-fit test. If you answer is, "no," explain why this test does not apply.A researcher studying public opinion of proposed Social Security changes obtains a simple random sample of 25 adult Americans and asks them whether or not support the proposed changes . To say that the distribution of the sample proportion of adults who respond yes, is approximately normal , how many more adult Americans does the researcher need to sample in the following cases? (a) 15% of all adult Americans support the changes (b) 20% of all adult Americans support the changesHello, I am having troubles with Example 1 in the elementary statistics book in Chapter 5.4 A sampling Distribution oF sample means: The number of times 4 people go grocery shopping in a month is given by the population values {1,3,5,7}. You randomly choose two of the four people, with replacement. List all possible samples of size n=2 and caclculate the mean of each. These means form the sampling distribution of the sample means. Find the mean, variance, and standard deviation of the sample means. Compare your results with the mean = 4, variance = 5, and standard deviation = 2.2. I know how they obtained the mean but using the formula to get variance I am not sure how they go 5/2 = 2.5. Thank you.
- Create real life problem situations in psychological field that illustrates the use of each of the following probability and non- probability sampling techniques. 2. Cluster SamplingCreate real life problem situations in psychological field that illustrates the use of each of the following probability and non-probability sampling techniques. 1. Snowball Sampling 2. Convenience SamplingA researcher studying public opinion of proposed Social Security changes obtains a simple random sample of 50 adult Americans and asks them whether or not they support the proposed changes. To say that the distribution of the sample proportion of adults who respond yes, is approximately normal, how many more adult Americans does the researcher need to sample in the following cases? (a) 15% of all adult Americans support the changes (b) 20% of all adult Americans support the changes (a) The researcher must ask more American adults. (Round up to the nearest integer.) (b) The researcher must ask more American adults. (Round up to the nearest integer.)
