1 Which of the following conclusions could you draw from the following bee swarm plot of iris petal lengths? petal length (cm) 7 10 st 2 1 Boo setosa versicolor species virginica A. All I. versicolor petals are shorter than I. virginica petals. B. I. setosg petals have a broader range of lengths than the other two species. C. I. virginica petals tend to be the longest, and I. setosa petals tend to be the shortest of the three species. D. I. versicolor is a hybrid of I. virginica and I. setosa.
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- Based on the parallel boxplots in the display, which of the following statements about these data sets CANNOT be justified? 1. The range of the two sets of data is the same 2. The data in set A has less variability than the data in set B 3. The median of set A is greater than the median of set B 4. The interquartile range of set B is more than twice the interquartile range of set A Set B has more data than set AMr. James, president of Daniel-James Financial Services, believes that there is a relationship between the number of client contacts and the dollar amount of sales. To document this assertion, he gathered the following information from a sample of clients for the last month. Let X represent the number of times that the client was contacted and Y represent the valye of sales ($1000) for each client sampled. Number of Contacts (X) Sales ($1000) 14 24 12 14 20 28 16 30 23 30 c) James would like to require 30 client contacts per month. Based upon the above data, predict what the monthly sales would be for this number of client contacts. What would be your advice to Mr. James about his proposed policy?The table below summarizes data from a survey of a sample of women. Using a 0.01significance level, and assuming that the sample sizes of 800 men and 300 women are predetermined, test the claim that the proportions of agree/disagree responses are the same for subjects interviewed by men and the subjects interviewed by women. Does it appear that the gender of the interviewer affected the responses of women? Gender of Interviewer Man Woman Women who agree 498 247 Women who disagree 302 53 Compute the test statistic, rounding to three decimal places. Find the critical value(s). (Round to three decimal places) What is the conclusion based on the hypothesis test?
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