Here is part of a calculation in a spreadsheet working withsample data of x.Q5.f0-10-525-40-850-605Which expression calculates the mean of x?[3(5) + 5(17.5) + 9(32.5) + 8(45) + 5(55)]/5[3(5) + 5(17.5) + 9(32.5) + 8(45) + 5(55)]/30[3(0) + 5(10) + 9(25) + 8(40) + 5(50)]/5[3(10) + 5(25) + 9(40) + 8(50) + 5(60)]/30А.В.C.D.3.

Given: Class Frequency (f) 0- 3 10- 5 25- 9 40- 8 50-60 5

Answered: Here is part of a calculation in 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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The information below represents some summary statistics for MAT361, fall 2019, students in quiz 1 and quiz 2. [2] Summary statistics Quiz 1 Quiz 2 6. 9 12 12 16 16 (Lowest, Highest) (2, 22) (2, 22) Draw a box plots in a single graph for quiz 1 and quiz 2 using the above information. Explain how the students did in quiz 2 compared to quiz 1?
A newspaper article reported that people spends a mean of 6 hours per day watching tv, with a standard deviation of 1.8 hours. A psychologist would like to conduct interviews with the 15% of the population who spend the most time watching tv. She assumes that the daily time spent watching tv is normally distributed. At least how many hours of daily tv watching are necessary to be eligible for the interview? Carry intermediate computations to 4 places, and the answer to 1.
Two teachers had 30 of their students take a test. Teacher A found a mean of 78.6 with a SD-3.5 while teacher B found a mean of 77.3 and a SD-4.1. At the 97% level, test the opnion that class B is less than class A. 1. Is the test (A-Left Tailed, B-Right Tailed, C-2-Tailed) (separate with a comma if there are 2) 2. Critical Value 3. Test statistic 4. 3-decimal p-Value
The mean of 345 quantities is 5.9. Suppose one more value X346 is added to the data set, and the new mean is nonnegative(greater than or equal to 0). Find the minimum possible value of X346-
2
Over the past year, the vice president of human resources at a large medical center conducted a series of three-month workshops aimed at increasing worker motivation and performance. As a check of effectiveness, she selected 7 employees from the personnel files and recorded their most recent annual performance ratings along with the ratings attained prior to attending the workshops. At a 5% level of significance, is there evidence that the workshops increased performance ratings? Take the differences = before - after. Before After59 7272 7489 6267 7481 7888 9271 81Take the differences = before-after. Order the data smallest to largest, ignoring the negative signs. Rank the data from 1 to 7. Observation 5 had the values Before = 81 and After = 78. What is the difference before - after of these values? Answer=3What rank will observation 5 receive? Answer=2Add up all the ranks that have a negative difference,…
10 of 17 > Suppose that the following frequency table contains data on the number of absences in a school year due to illness or injury for 80 randomly selected high school students. Use the table to determine the median number of absences for these 80 students. Provide your answer with precision to one decimal place. Number of Frequency absences 20 1 9. 2. 11 8 4 10 6. 4 3 8 3 9 1 10 11 Click to download the data in your preferred format. Crunchlt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Cale median = absences 8
Suppose the following table was generated from a sample of 20 CEOs relating annual salary to years of experience and the industry in which they are employed. Indicator (dummy) variables were created for each industry (1 if the CEO works in that industry, 0 otherwise). The Financial industry is considered the base-level industry. Coefficients Standard Error t Stat P-Value Intercept 137193.448002137193.448002 6407.1621946407.162194 21.41251421.412514 0.0000000.000000 Experience 3007.5678003007.567800 247.058728247.058728 12.17349312.173493 0.0000000.000000 Health Care 11661.96750111661.967501 6818.1047396818.104739 1.7104411.710441 0.1077810.107781 Service −17452.317038−17452.317038 6656.6626316656.662631 −2.621782−2.621782 0.0192450.019245 Manufacturing 27645.00035227645.000352 6840.2705206840.270520 4.0415074.041507 0.0010660.001066 Copy Data According to the results, if a CEO in the Financial industry and a CEO in the Service industry both have 20 years…

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