No.Date3) The table below as hows the freguency distribution of bot tery lifeopia 0 d aoittogo de Feregweney Distribution of car Battery Life Ct Years)te botin ulloutotrobiang lioclass Interval toolor Frequencylo ob200 wow 2 Mith the61-062-0-2.432-S 2.911CoBabcu3.0-3.4tnolowta to la edT 2ewmite lopalli os opel to 2N t tcdn amobut1S3.5 3.9olla ttr o o to 22,p1 oe ni ballong 2inobuts tobetdin4.0- 4.4S4.5- 4.9lamoz sititoErbjorlamoa troinov lgamsno solutieon is a no point item.dShow the necessary computations when neededlba) Findthe mesn, imealian and the stendlord deviation of the dlato tlaimia alli caien6 Find the interquartile range.2tnobwtalio 2N/o otc Describe the shape of the distribution. 1f skewed, find the coefficierrt of skewnessd construct a histogram for these data.

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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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Clara Destiny sho... Employment Center + Login Sessic Apps A OnCourse Connec... Unit 4, Lesson 4: Describing Distributions Destiny Ofoegbu In an experimental study, it was noticed that people who eat more leafy, green vegetables tend to get better sleep than the general population. Researchers wonder whether the improved sleep might be caused by the minerals potassium and magnesium found in leafy, green vegetables. How could the researchers design an experiment to determine the effects of potassium and magnesium on sleep? Submit
Table 3 shows the distribution for the number of medical leaves (in days) taken within a certain period by 65 employees of accompany. Number of medical leaves Number of employees (days) 1-3 4 4 -6 7-9 8 10 - 12 12 13 - 15 18 16 - 18 11 19 - 21 Table 3: The number of medical leaves (in days) (a) Draw a cummulative frequency curve to illustrate the data. (Note : Use graph sheet) (b) Using the ogive in question 4(a), estimate the median and third quartile value. (c) Calculate the mean, and standard deviation from the data given in Table 3.
Part of the frequency table given below represents the ages of a certain group of people. The ogive curve shown in the graph is drawn from this table. Using this curve the approximate probability that a randomly selected person from this group will be between 64 and 70 years old is Upper Cls Cum. Rel. Lim Freq 59.5 62.5 0.05 65.5 0.23 68.5 0.65 71.5 0.92 74.5 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 58 60 62 64 66 68 70 72 74 Age (yrs) Select one: a.0.9 b.0.8 c.0.7 d.0.1 None Cum Rel Freq
• Question 18 %3D A random sample of 15 song lengths (in minutes) on a playlist found: = 275.6, s = 12.9. Build a 80% Cl for the population mean length of a song on the playlist. Round all intermediate calculations to two decimals, then construct the Cl and enter like this: (min,max). Note: if you use a built-in Cl command on a calculator/computer, you might get marked wrong due to rounding. Use the formulas given in the text/notes. a. Since n < 30, O It is important that song lengths be normally distributed O We use s, not o O We use a T-interval O We use a Z-interval b. The Cl is: octor Submit Question ét 21 MacBook Air 20 F3 O00 000 F4 F1 77 F7 F2 F5 F6 F8 %23 & %24
Prev Question 22 of 23 Step 1 of 1 Consider the following frequency table representing the distribution of hours students spend on homework in a week. Determine the class width of each class. Hours Students spend on homework in a week Class Frequency 10-15 3 16-21 3 22-27 9 28-33 34-39 3 9 Copy Data 01:14:14 Next
Refer to the following frequency distribution on days absent during a calendar year by employees of a manufacturing company How can the data be graphically presented? yet anwnd whad ut of100 Days absent O up to 3 days 3 up to 6 days 6 up to 9 days 9 up to 12 days 12 up to 15 days Number of employees 60 Fag oton 31 14 16 12 Select one Ca Frequency bar chart Ob pie chat O e Frequency polygon Od Frequency table Oe Bar chart
without using calculator
part d: find the difference in means
Question 30 Using the 2* rule, determine the number of class intervals(k) for the frequency distribution table(grouped data) given n=120. A k=6 k=5 (c) k=8 D) k=7
Question 3 Marquis scored 82 in the class with the mean /5.5 and the standard deviation 5.4, but Rhianna scored 69 in the class with the mean 58.9 and the standard deviation 9.1. Who scored relatively better? (Round the answers to 2 decimal places) Marquis's z-score is Marquis's z-score is Select an answer Select an answer less than greater than the same as and Rhianna's z-score is Rhianna's z-score, we conclude that Select an answer Select an answer Rhianna did relatively better Marquis and Rhianna did relatively the same Marquis did relatively better Since
* Question Completion Status: QUESTION 4 Which of the following is not sensitive to extreme values? O a. The range. O b. The standard deviation. Oc. The interquartile range. O d. The coefficient of variation. O e. All of the above. QUESTION 5 bo 7-ccore formula is that:
Question 23 [CLO-1] The data set (1,3,5,7,9) has a first quartile of 0 8 03 01 05

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