1. Professor Dublin has just given a biology examand wants to calculate the 'range' of performanceof his students. What must he do?1. Identify the central score.2. Find the score that occurs most often.3. Identify how far from average each score is.4. Subtract the lowest score from the highest score.5. Plot scores on a bell curve. 2. Professor Dublin wants to ensure he isthorough in his review of student performance,so he decides to calculate 'standard deviation' aswell. What must Professor Dublin do to figure outthis measure of variability?1. Identify the central score.2. Find the score that occurs most often.3. Identify how far from average each score is.4. Subtract the lowest score from the highest score.5. Plot scores on a bell curve.

1. Given: Professor Dublin has just given a biology exam and wants to calculate the 'range' of…

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A survey was conducted among 68 patients admitted to a hospital cardiac unit during a two-week period. The data of the survey are shown below. Let B= the set of patients with high blood pressure. Let C= the set of patients with high cholesterol levels. Let S = the set of patients who smoke cigarettes. Answer parts (a)-(d) below. n(BNS) = 11 n(B n C) = 11 n(B ncns) = 6 n[(B nC) U (BNS) u (CNS)] = 20 n(B) = 30 n(C) = 28 n(S) = 31 ... (a) Find the number of these patients that had either high blood pressure or high cholesterol levels, but not both. The number of patients that had high blood pressure or high cholesterol levels, but not both, is 41 A
Can someone walk me through how to find this using excel? I am studying for my final and I am so lost on the first one. The PowerPoint from class is not helping either
(a) What experimental design would be the best to use in the following situation? Be specific. Explain the good features of your proposed design. A taste panel will convene this afternoon to compare six different brands of ice cream. The panel is comprised of 10 persons who are expert tasters. The maximum number of different brands that an individual taster will taste is 3. (b) What would you do if three of the expert tasters failed to come this afternoon because of illness so that you could not run the design recommended in (a) above?
Lotus Yoga Products has 10 operators, and the company works 8 hours a day (8 am to 5 pm with an hour break), 5 days a week. Company is manufacturing yoga pants and the standard minute value for a line to finish one pant=20 minutes. Company produces 178 pairs of pants a day. Calculate the output, in-put and productivity (first two answers in minutes and third as a percentage). What is the number of days to finish the order for 2500 pants (round to whole number) = Required capacity needed in hours /actual capacity per day in hours
Atlantic hurricanes form off the western coast of Africa. As warm moist air rises, it begins to rotate around a low- pressure system. This rotation is sustained by warm ocean temperatures and a central low pressure. Once a sustained wind speed of 74 miles per hour is reached, the storm is considered a hurricane. As man-made climate change continues to increase the temperature of the Earth's oceans, it is expected that the strength of hurricanes will Typically, a lower central pressure within a hurricane's eye is associated with a higher wind speed. Here, statistical software (R/RStudio) will be used to explore this relationship by applying linear regression methods. Using a database of landfalling hurricanes in the United States, a linear regression will be used to correlate the central pressure of each hurricane to its maximum sustained wind speed. increase. Regression Plot y=942.196-0.884*x R^2=0.768 ----- ----------- -. •... •. 980 1000 940 960 900 920 Independent Variable (x)…
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ALREADY HAVE FIRST THREE ANSWERS NEED THE REST. ANOVA. Dr. Milgram is conducting a patient satisfaction survey, rating how well her patients like her on a scale of 1-10. Her patients tend to fall into three categories: “Like a lot”, “like somewhat”, and “dislike a lot”. She believes that she might get different satisfaction scores from people in each group, but (because she's not great at numbers) she wants you to do an ANOVA to be sure. She has collected data from 12 patients (three equal groups) with the following results. Group 1) “Like a lot” Mean: 8 SS: 2 N: df: Group 2) “Like somewhat” Mean: 5 SS: 6 N: df: Group 3) “Dislike a lot” Mean: 2 SS: 4 N: df: Grand Mean: 4 df Within-Group: 9 df Between-Groups: 2 Estimated Variance (S21) for Group 1: _______ Estimated Variance (S22)…
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The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 38 who smoke. Step 1 of 2: Suppose a sample of 273 Americans over 38 is drawn. Of these people, 79 smoke. Using the data, estimate the proportion of Americans over 38 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places. Step 2 of 2: Suppose a sample of 273 Americans over 38 is drawn. Of these people, 79 smoke. Using the data, construct the 85% confidence interval for the population proportion of Americans over 38 who smoke. Round your answers to three decimal places. Lower end point, upper end point
The percentage of high school seniors using alcohol decreased from 68.4% in 1975 to 52.4% now. Express this change in two ways: (1) as an absolute difference in terms of percentage points and (2) as a relative difference in terms of percent. (1) The percentage of high school seniors using alcohol decreased by (Round to the nearest tenth as needed.) percentage points. %. (2) The percentage of high school seniors using alcohol decreased by (Round to the nearest tenth as needed.)
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Cory is serving coffee in a large reception with many guests. There are two kinds of coffee: regular anddecaf. So far, he has served 71 cups of regular and 49 cups of decaf.Question 3.Based on the information so far:(a) Estimate the proportion of coffee-drinking guests who prefer regular.

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1. Professor Dublin has just given a biology exam and wants to calculate the 'range' of performance of his students. What must he do?