Statistics > QUESTIONS & ANSWERS > Sophia Learning - Foundation of Statistics - Milestone Study Guide Revisions, 8 Updated Study Guide, (All)

Sophia Learning - Foundation of Statistics - Milestone Study Guide Revisions, 8 Updated Study Guide, Correctly Answered Questions, Test bank Questions and Answers with Explanations (latest Update), 100% Correct, Download to Score A

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7/26/2020 Sophia :: Welcome https://www.sophia.org/spcc/foundations-of-statistics-2/milestone_take_feedbacks/4298807 1/17 MILESTONE Score 22/25 You passed this Milestone 22 questions were answered correctly. 3 questions were answered incorrectly. 1 Part of Patrick's job as manager of an indoor pool at the local community center was to determine the type of snacks they should offer, what time of day people were most likely to visit the pool, and the day of the week that has the most swimmers. Patrick wants to create either a bar graph or a histogram for his data. For what data would the histogram be the best way to represent Patrick's information? The type of snacks offered The time of day people were most likely to visit the pool The day of the week with the most swimmers All of the data is best graphed using a histogram RATIONALE Histograms are best used with interval or ratio variables. The type of snack offered and day of the week are categorical data, not interval or ratio data, so time of day is the best for a histogram. CONCEPT Graphing Data 2 7/26/2020 Sophia :: Welcome https://www.sophia.org/spcc/foundations-of-statistics-2/milestone_take_feedbacks/4298807 2/17 Because her current cable provider wasn't providing the service she desired, Gwen decided to change companies. Gwen made a hypothesis as to the outcome of using a new cable provider. Which of the following is the null hypothesis? The new company may be better or worse than the old company. There is no difference between the level of service provided by either company. The new company will be worse than the old company. The new company will be better than the old company. RATIONALE Gwen is not sure that the new provider will have better or worse service so we always set the null hypothesis to say that there is no difference between the two. CONCEPT Identifying a Reason for Performing an Experiment 3 The data on this graph represents the number of sales for several types of vehicles in 2015. Which vehicle represents the mode? Challenger Camaro F-150 Mustang 7/26/2020 Sophia :: Welcome https://www.sophia.org/spcc/foundations-of-statistics-2/milestone_take_feedbacks/4298807 3/17 Accord Corvette RATIONALE The mode is the value that occurs most often, or has the highest frequency. The tallest bar on this bar chart is F150, which indicates the mode. CONCEPT Identifying Measures of Center on a Graph 4 Two drains in Bill's house were clogged. After considering the selection of drain cleaners at the hardware store, Bill chose a brand that claimed to be effective with just one use. Back at home, Bill eventually had to use the cleaner three times before the drains cleared, but he was still satisfied with the product. Which of the following correctly describes the sample? The number of drains the product's manufacturer tested The products Bill chose All of the different types of drain cleaning products The number of times it takes for Bill's drains to unclog RATIONALE The sample items are the ones that are chosen for the experiment, so in this case it would be the products Bill purchased and used at home. All the different types of drain cleaning products would be the population, while the number of drains the product's manufacturer tested and the number of times it takes for Bill

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