One a recent statis exam €buenbuurFrequencyFrequencyFrequency61IRINHAN###JHI0-19 20-39 40-59 60-79 80-99ScoresLIL.0-18: 20-39 40-59 60-79 80-99ScoresG3-25 20-39 20-59 60-79 80-95ScoresIGL--ScoresUN COMME On a recent statistics exam students received scores as follows.34 45 34 75 78 66 34 95 23 56 87 56 34 4556 87 09 87 57 87 56 87 54 77 92 95 34 36Identify the corresponding bar graph.

Introduction A bar graph is used to represent the qualitative variables that were categorized and…

Answered: On a recent statistics exam students…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made in a given time period and found that 10% of all lenses had defects of some type. Looking at the type of defects, they found in a three-month time period that out of 34,024 defective lenses, 5840 were due to scratches. Are there more defects from scratches than from all other causes? State the Type I and Type II errors in this case.State the Type I error. Concluding that the proportion of defects from scratches is 10%, when in reality it is less than 10%. Concluding that the proportion of defects from scratches is 10%, when in reality it is higher than 10%. Concluding that the proportion of defects from scratches is less than 10%, when the proportion is actually 10%. Concluding that the proportion of defects from scratches is higher than 10%, when the proportion is actually 10%. State the Type II error. Concluding that the proportion of defects from scratches is…
In a study, the data you collect is standardized exam score . What type of data is this? O Qualitative (Categorical) O Quantitative - Discrete O Quantitative - Continuous
Major League Baseball (MLB) consists of teams that play in the American League and the National League. MLB collects a wide variety of team and player statistics. Some of the statistics often used to evaluate pitching performance are as follows: • ERA: The average number of earned runs given up by the pitcher per nine innings. An earned run is any run that the opponent scores off a particular pitcher except for runs scored as a result of errors. • SO/IP: The average number of strikeouts per inning pitched. • HR/IP: The average number of home runs per inning pitched. • R/IP: The number of runs given up per inning pitched. The following data show values for these statistics for a random sample of 20 pitchers from the American League for one full season. Player Тeam W ERA SO/IP HR/IP R/IP Verlander, J DET 24 2.40 1.00 0.09 0.29 Beckett, J BOS 13 7 2.88 0.92 0.12 0.35 Wilson, C TEX 16 7 2.93 0.93 0.08 0.40 Sabathia, C ΝY 19 8. 3.01 0.97 0.06 0.36 Haren, D LAA 16 10 3.16 0.80 0.08 0.37…
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A new noninvasive screening test is proposed that is claimed to be able to identify patients with impaired glucose tolerance based on a battery of questions related to health behaviors. The new test is given to 75 patients. Based on each patient's response to the questions they are classified as positive or negative for impaired glucose tolerance. Each patient also submits a blood sample and their glucose tolerance status id determined and tabulated below. What is the sensitivity of the screening test? screening test impaired glucose tolerance not impaired positive 17 13 negative 8 37 please clearly explain how you got this so I can try to figure it out on my own
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The table below contains the periodontal status of individuals and their sex. Periodontal status refers to gum disease where individuals are classified as either Healthy, have Gingivitis, or have Periodontal Disease (Perio). Female Male Total Healthy 2108 1124 3232 Gingivitis 1582 937 2519 Perio 873 931 1804 Total 4563 2992 7555 Find Pr{Female or Gingivitis). If necessary, round your answer to 3 places after the decimal.
To collect data about the amount of time students spend studying for exams, which of the following methods should a teacher use to lead to a sample that is the most representative of the students in the school? Survey all the students who are in their final year of high school. Survey all students who achieved over 85% on their report card last semester. Survey all the students who play football. Survey all the students in the classes that he or she teaches. Survey 20 randomly selected students from each grade.
There are 9 million enrollees in the Department of Veterans Affairs health care system. It wants doctors and nurses to treat pain as a “fifth vital sign” to be recorded along with blood pressure, pulse, temperature, and breathing rate. If you were to aid the VA in this situation, how would you measure a patient’s pain? How could this “fifth vital sign” be a potentially invalid measure? Answer each question with at least one paragraph of three complete sentences.
You may need to use the appropriate appendix table or technology to answer this question. Market-share-analysis company Net Applications monitors and reports on internet browser usage. According to Net Applications, in the summer of 2014, Google's Chrome browser exceeded a 20% market share for the first time, with a 20.37% share of the browser market.† For a randomly selected group of 20 Internet browser users, answer the following questions. (Round your answers to four decimal places.) (a) Compute the probability that exactly 7 of the 20 Internet browser users use Chrome as their Internet browser. (Round your answer to four decimal places.) (b) Compute the probability that at least 3 of the 20 Internet browser users use Chrome as their Internet browser. (Round your answer to four decimal places.) (c) For the sample of 20 Internet browser users, compute the expected number of Chrome users. (d) For the sample of 20 Internet browser users, compute the variance and…

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On a recent statistics exam students received scores as follows 34 45 34 75 78 66 34 95 23 56 87 56 34 45 36 87 09 87 57 87 56 87 54 77 92 95 34 36 Identify the corresponding bar graph.