SAMPLING Source Saunders er al (2009)
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Q: 2. The following stemplot gives data on the hemoglobin levels (in g/dL) for 22 randomly selected…
A: Find Median =? Q3 = ?
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A: See the attachment
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A: Margin of error (E) = 3% = 0.03Significance level (α) = 1 - 0.95 = 0.05
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- One of the assumptions for both the Kruskal-Wallis Test and Friedman's Test is that the treatment populations must have approximately the same shape. On SPSS, what should we use to check this assumption? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Q-Q plots b Вохplots There is no way to check this assumption.a berkeleycollege.instructure.com Question 2 For the following data set: 13, 7, 10, 20, 5 Calculate, rounding your answers to one decimal place. a) The population mean b) The population variance c) The population standard deviation Question 3 A survey of freshmen business students was conducted at a large universit student were asked if they read the Business Week (B), Fortune (F) or Journa: The results are shown in the Venn diagram in FIGURE 11. VENN DIAGRAM Eday.of.year time.of.day sampling.time soil.temperature soil.water.content 174 8am 174.25 24 0.358 174 2pm 174 8pm 174.5 29.85 0.352 174.75 31.4 0.346 175 2am 175 27.44 0.338 175 8am 175.25 25.05 0.331 175 2pm 175.5 29.98 0.329 175 8pm 175.75 31.29 0.325 176 2am 176 27.8 0.318 176 8am 176.25 25.2 0.313 176 2pm 176.5 29.84 0.311 176 8pm 176.75 31.27 0.309 177 2am 177 27.46 0.303 177 8am 177.25 24.87 0.298 177 2pm 177.5 29.56 0.298 177 8pm 177.75 30.17 0.296 178 2am 178 26.5 0.291 178 8am 178.25 24.89 0.288 178 2pm 178.5 28.38 0.288 178 8pm 178.75 32.68 0.288 179 2am 179 27.53 0.283 179 8am 179.25 25.2 0.28 179 2pm 179.5 30.44 0.279 179 8pm 179.75 34.34 0.278 180 2am 180 28.92 0.275 180 8am 180.25 26.5 0.272 180 2pm 180.5 31.41 0.27 180 8pm 180.75 34.61 0.267 181 2am 181 29.61 0.265 181 8am 181.25 27.09 0.262 181 2pm 181.5 31.79 0.26 181 8pm 181.75 35 0.256 182 2am 182 30.23 0.254
- under what circumstances we should use these statistical methods: Z-Test One sample T-test Dependent T-test Independent 2-sample T-testHere are the choices:Chi-SquareCorrelationRegressionWhich of the following statistics are unbiased estimators of the population parameter? Select all that apply. A) Sample mean B) Sample proportion C) Sample range
- question 17 an ANOVA is used to evaluate the difference among 2 treatment conditions with a sample of n=14 participants in each condition. for this research study, what is df- within? a) 1 b) 26 c) 2 d) 13O a. the OLS estimate of r is biased due to sample selection. O b.the OLS estimate of r is unbiased. Oc the error u is homoskedastic. O d. the OLS estimator is BLUE.DEVORESTAT97.2.020. MY NOTES ASK YOUR TEA TV advertising agencies face increasing challenges in reaching audience members because viewing TV programs via digital streaming is gaining in popularity. A poli reported that 55% of 2349 American adults surveyed said they have watched digitally streamed TV programming on some type of device (a) Calculate and interpret a confidence interval at the 99 confidence level for the proportion of all adut Americans who watched streamed programming up to that point in time. (Round yo answers to three decimal places.)
- a) How are Guinness Beer & the student’s t-test connected? b) Make a list of the distinguishing characteristics between continuous, discrete, and frequency data. How do you know when a variable is each type? What are examples of each? c) Define what we mean by frequency data? What type of variable(s) are we talking about? Provide a clear example. d) The following gives the number of degrees of freedom of this statistic as well as the value of the statistic. For each, use the appropriate table to find the associated p-value.C my.citruscollege.edu Test #2 (Ch P and Ch 3) O NWP Assessment Player UI App x b My Questions | bartleby + A assessment.education.wiley.com/was/ui/v2/assessment-player/index.html?launchld=9e31ddd2-7c41-432e-9d08-a883e4264522#/question/6 G George H.W. Bush.. C Stock Market Perfor. C my.citruscollege.edu G Google O PMP: Home : Child Growth and D. E Long Division Calc. I Other bookmarks E Reading list >> E Test #2 (Ch P and Ch 3) Ở 02:08 : 28 Question 7 of 12 > - /3 Information about a sample is given. Assume that the sampling distribution is symmetric and bell-shaped. P = 0.34 and the standard error is 0.10. (a) Indicate the parameter being estimated. : = :: :: l2 : Pi : P2 :: p :: * :: I1 : T2 :: p :: P :: p2 The parameter of interest is! O v 0 5:11 I!!Data for gas mileage (in mpg) for different vehicles was entered into a software package and part of the ANOVA table is shown below: Source DF SS MS Vehicle 2 440 220.00 Error 17 318 18.71 Total 19 758 Determine the p-value for the data. a) 0.0052 b) 0.8994 c) 0.0006 d) 0.0021 e) 0.0236 f) None of the above