6.86 Errors in filling prescriptions A large number ofpreventable errors (e.g., overdoses, botched operations,are being made by doctors and nurses inmisdiagnoses)U.S. hospitals. A study of a major metropolitan hospitalrevealed that of every 100 medications prescribed or dis-pensed, 1 was in error, but only 1 in 500 resulted in anerror that caused significant problems for the patient. Itis known that the hospital prescribes and dispenses 60,000medications per year.a. What is the expected proportion of errors per year atthis hospital? The expected proportion of significanterrors per year?b. Within what limits would you expect the proportion ofsignificant errors per year to fall?

Part (a): What is the expected proportion of errors and significant errors?Proportion of…

Answered: 6.86 Errors in filling prescriptions A…

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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Impact of College Roommates on Grades In this exercise, we investigate answers to the questions: How much of an effect does your roommate have on your grades? In particular, does it matter whether your roommate brings a videogame to college? A study was conducted involving n = 210 first-year students who were randomly assigned a roommate. Table 1 gives summary statistics on grade point average (GPA) for the first semester depending on whether the student and/or the roommate brought a videogame to campus. Student brought videogame No The 90% confidence interval is i Yes No Yes Roommate brought videogame No No Yes Yes Sample size Mean GPA 88 44 38 40 3.128 ! to i 3.039 2.932 2.754 St. Dev. 0.590 0.689 0.699 Table 1 Videogames and GPA Considering only students who do not bring a videogame to campus, find a 90% confidence interval for the difference in mean GPA between students whose roommate does not bring a videogame and those whose roommate does bring a videogame μN - μy, where μN…
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Multivariate analysis is a statistical principle that involves observation and analysis of more than one statistical outcome variable at a time. O True False
Textbook: Statistics for the Behavioral SciencesGregory J. Privitera Please show your work-Concept and Application Problems (Pg.133) If Sample 1 has a variance of 4 and Sample 2 has variance of 32, can we tell which sample had a larger range? If so, which sample had a greater range?
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Statistical Laboratory Link of dataset: https://www.kaggle.com/datasets/johnharshith/world-happiness-report-2021-worldwide-mortality Country name Population 2020 Population 2019 United States 331002647 328239523 Egypt 102334403 100388073 Morocco 36910558 36471769 Lebanon 6825442 6855713 Saudi Arabia 34813867 34268528 Jordan 10203140 10101694 Syria 17500657 17070135 Turkey 84339067 83429615 Pakistan 220892331 216565318 Indonesia 273523621 270625568 Bangladesh 164689383 163046161 United Kingdom 67886004 66834405 France 65273512 67059887 Germany 83783945 83132799 Netherlands 17134873 17332850 Belgium 11589616 11484055 Spain 46754783 47076781 Italy 60461828 60297396 Poland 37846605 37970874 Hungary 9660350 9769949 Czech Republic 10708982 10669709 Romania 19237682 19356544 Sweden 10099270 10285453 Greece 10423056 10716322 Denmark 5792203 5818553 Iran 83992953 82913906 Hong Kong S.A.R. of China 7496988 7451000 Singapore 5850343…
Impact of College Roommates on Grades In this exercise, we investigate answers to the questions: How much of an effect does your roommate have on your grades? In particular, does it matter whether your roommate brings a videogame to college? A study was conducted involving n = 210 first-year students who were randomly assigned a roommate. Table 1 gives summary statistics on grade point average (GPA) for the first semester depending on whether the student and/or the roommate brought a videogame to campus. Student brought videogame No Yes No Yes Roommate brought videogame No No Yes Yes Sample size 88 44 38 40 Mean GPA 3.128 3.039 2.932 2.754 Table 1 Videogames and GPA St. Dev. 0.590 0.689 0.699 0.639 Considering only students whose roommate does not bring a videogame to campus, find a 99% confidence interval for the difference in mean GPA between students who bring a videogame and those who do not bring a videogame μN - My, where μ represents the mean GPA for students who do not bring a…
TRUE OR FALSE
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Dr. Maddan's eye drops are supposed to cause significant reduction is eye redness. The following table shows the results of a recent study where a random sample of individuals took part in a placebo controlled study. No Reduction in Redness Reduction in Redness Total Eye Drops 120 220 340 No Eye Drops Total 120 140 260 240 360 600 With 5% level of significance, determine if eye redness reduction is dependent upon taking the eye drops. Provide, a. the Chi-square statistic. b. the critical value or the p-value. c. Your decision on whether or not to reject Ho.

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