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- Here is a set of sample data. 100 43 19 50 49 37 36 75 46 24 65 18 90 45 21 20 94 74 81 91 35 83 Base on the data above, identify the 5 number summary _,_,_,_,_Consider the following two sample data sets. Set 1: 7 5 3 8 9 Set 2: 8 13 14 2 5 a. Calculate the coefficient of variation for each data set. b. Which data set has less consistency (or more variability)?The number of Starbucks coffee shops in cities within 20 miles of theUniversity of California, Riverside is shown in the following table. See Attachment a. Draw a dotplot to describe the data.b. Describe the shape of the distribution.c. Is there another variable that you could measure that might help to explain why some cities have more Starbucks than others? Explain.
- Draw a Frequency polygon, histogram and a cumulative frequency distribution for the following data: Class 7.1 to 7.3 Frequency 3 7.4 to 7.6 5 7.7 to 7.9 9. 8.0 to 8.2 14 8.3 to 8.5 11 8.6 to 8.8 6. 8.9 to 9.1Information about a sample is used to make a prediction about the population. This type of statistical analysis is referred to as: Descriptive Statistics Mathematical Certainty Deductive Reasoning Inferential Statistics Sampling StatisticsA) We have just conducted a study examining how much math anxiety students experience after taking a statistics class. We want to know if students on average are reporting low (1) or high (7) levels of math anxiety. To do that, we want to compare the math anxiety levels of the students after they have taken a statistics course to the average population math anxiety. We believe that the students on average will have a level of math anxiety that differs from the population. X 3 4 4 5 5 3 1 3 5 6 7 2 2 3 2 3 2 3 1 3 Report our null and alternative hypotheses in words. Given the information we have, what specific t-test do we need to run in order to examine our hypothesis? Provided are the ratings from the students that we recruited (see left), the mean and standard deviation for that sample (see below), and the population average (see below): xbar =3.35, Meu=4.00 and SD=1.60…
- 7 Answer: Calculate the median of the following sample data: 8 10 7 14 53 22 5 5 5 22 Answer: O E hoThe set of all possible values of a sample statistic is called a A. simple random sample. B. point estimate. C. census. D. sampling distribution.2. Determine the level of significance and the direction of test. 3. Test Statistics: