Sample mean and sample proportion

    • [DOCX File]Minneapolis Public Schools

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      The slope of the sample regression line is 1.348. The slope of the sample regression line is 0. A department store manager wants to know if a greater proportion of customers on the store’s mailing list would redeem a coupon for $5 off the price of an item than would redeem a …

    • [DOC File]Sample Test Questions -- Test 1

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      Statistics can change from sample to sample. 99.For X~N(1, 12), find the probability P(X=5). 0 .1 .01 .98 100.The length of human pregnancies is approximately normal with mean 266 days and standard deviation 16 days.

    • [DOC File]CHAPTER 8—INTERVAL ESTIMATION

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      10. A statistician selected a sample of 16 accounts receivable and determined the mean of the sample to be $5,000 with a standard deviation of $400. He reported that the sample information indicated the mean of the population ranges from $4,739.80 to $5,260.20. …

    • [DOC File]CHAPTER 9—HYPOTHESIS TESTS

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      a. Compute the sample mean and the standard deviation. b. State the hypotheses for this problem. c. Compute the test statistic. d. At 95% confidence using the p-value approach, what is your conclusion? ANS: a. = 25,000 s = 1,936.49 b.

    • [DOCX File]Author Note - American Psychological Association

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      Each instructor provided data on one course. Approximately 259 instructors (71%) provided ratings for face-to-face courses, and 105 (29%) provided ratings for online courses, which accurately reflects the proportion of face-to-face and online courses offered at the university. The sample …

    • [DOC File]AP Statistics Murder Mystery

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      N. Large Sample test of a population mean T. Regression. O. Test of a population proportion (z-test) U. ANOVA. N ___ Use a simple random sample of size 100 to determine whether the average . income for upperclassmen at RRHS is greater than $75/week. O ___ Use a simple random sample of size 100 to determine whether more than

    • [DOCX File]Sample Demographic Characteristics Table - APA Style

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      Sample Tables. The tables in this document demonstrate APA Style formatting for tables as described in the Publication Manual of the American Psychological Association (7th ed.).. The tables are labeled (e.g., sample correlation table) to assist users in understanding the formats.

    • [DOC File]Sampling and Sample Size - Columbia

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      For example, a sample survey can be used to give a range of values that the true population proportion or population mean is expected to lie within. The intervals can be constructed to provide greater or lesser levels of confidence; however, the usual choice is 95% (with 90% and 99% useful in certain situations).

    • [DOC File]Exam 3 Practice Questions

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      26. What is the sampling distribution of the sample proportion? ~ N(10, 0.2) ~N(2, 1.27) ~N(0.2, 0.04) Can not be determined. 27. What is the probability that the sample proportion is greater than 0.24? 0.1841 0.1587 0.8413 1.0 28. An auto insurance company has 32,000 clients, and 5% of their clients submitted a claim in the past year.

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