apsent i))Best Electronics offers a "no hassle" returns policy. The number of items returned per day follows the normal distribution. The meannumber of customer returns is 9.3 per day and the standard deviation is 2.15 per day. Refer to the table in Appendix B.1.a. In what percentage of the days 6 or fewer customers returning items? (Round z-score computation to 2 decimal places and thefinal answer to 2 decimal places.)No, it is not possible.Percentageb. In what percentage of the days between 12 and 15 customers returning items? (Round z-score computation to 2 decimal placesand the final answer to 2 decimal places.)Percentagec. Is there any chance of a day with no returns?F3#3EF4$4%R%F5010Q SearchF6%5 €T^6F7YF8&7U< PrevSavedF9*86 of 7acerF10--9F11Next >DCOBaF12Scr LkPNPrtScSysRqPause+Break0InsertDel

The number of item returned per day follows a normal distribution with mean 9.3 and standard…

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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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Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 52.7 degrees. Low Temperature (°F) Frequency 40-44 45-49 50-54 10 55-59 6 60-64 Find the mean of the frequency distribution, Round to the nearest tenth as needed. Which of the following best describes the relationship between the computed mean and the actual mean?
Which data set would give the smallest standard deviation? Select one: a. {100, 150, 200, 250, 300} O b. {1, 5, 7, 150, 2} O c. {4, 20, 55, 100, 2} O d. (56, 20, 34, 102, 30}
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Find the standard deviation for the following data set. 2, 2, 2, 5, 5, 6, 6, 8, 8, 9 A. 2.49 B. 2 C. 5 D. 6.21 Which is the correct answer?
The scores and their percent of the final grade for a statistics student are given. What is the student's weighted mean score? The student's weighted mean score is. (Simplify your answer. Round to two decimal places as needed.) Homework Quiz Quiz Project Final Exam Score Percent of final grade 85 90 90 98 89 15 10 10 35 30
5.Identify the following as being discrete or continuous data. Explain.a. The average number of pets was 1.823b. The puppy weighed 2 pounds
Assume the selling prices of homes in a particular community follow a normal distribution with a mean of $263,100 and a standard deviation of $43,200. Complete parts a through c. a. Determine the range of selling prices in this community that includes one standard deviation around the mean. The range is from $ to $ (Type integers or decimals. Use ascending order.) b. Determine the range of selling prices in this community that includes two standard deviations around the mean. The range is from $ to $ (Type integers or decimals. Use ascending order.) c. Determine the range of selling prices in this community that includes three standard deviations around the mean. The range is from $ to $1. (Type integers or decimals. Use ascending order.)
The following set of data represents the number of orders filled by a national-chain restaurant during a two week period. Construct a five number summary for the the data. 66, 75, 68, 89, 86, 73, 67, 75, 75, 82, 85, 74, 67, 61 (Round to the nearest hundredth, if needed). Min _________________ Lower Quartile _________________ Median __________________ Upper Quartile _________________ Maximum __________________ What is the range and the interquartile range (IQR)? Range __________________ Interquartile Range (IQR) ___________________
Interpret scatter diagram and descriptive statistics.
(See photo) The data set on the left represents the annual rate of return (in percent) of eight randomly sampled bond mutual funds, and the data set on the right represents the annual rate of return (in percent) of eight randomly sampled stock mutual funds. What proportion of the observations is within one standard deviation of the mean for each data set?
Find the standard deviation.. Round to one more place than the data 7,19,20,8,17, 14, 8, 20, 12 O A. 5.1 O B. 1.7 O C. 5.4 O D. 5.7
Use the chart below to answer questions 1-6 about the ACT's. The ACT is a standardized test used by college admissions offices as a factor in whether an applicant is or is not admitted to their college. Since so many students take this test each year, the distribution of results are typically approximately normal. The table below shows the mean and standard deviation for each section of within the ACT for all test takers in the years 2015, 2016, and 2017. Standard Section Mean Deviation English 20.3 6.8 Math 20.7 5.4 Reading 21.4 6.5 Science 20.9 5.5 STEM 21.0 5.2 A

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