SESSMENT PRACTICEAtentedStudents who eat breakfast arekely to do well in school. Which ofowing can be inferred from thiswo events are causally related.ore often a student eats breakfast,etter the student will do in school.more evidence, it cannot bened whether the correlationng free breakfast to all students willhe achievement gap.(29. Performance Task Use the tabthe questions.THE DAILY NEWSNEWSPAPERS DECLINING!Year19401950196019701980199020002010DailyNewspapersin U.S.1,8781,7721,7631,7481,7451,6111,4801,382The decirt of newdely deberdrog: Knewsbarkasduty d* of**uered aldes prpuche Th hat strittyfeed only the United Statesthough there is a langesales forcave the ChaThe debate has become Mgenomly a deepeningpecession hat evt res andance explosive growthveled off foretall ng what theOne whether thenewspaper hdstry beingby a cyciel rough and willtechnology has her deednewspaper obrolPart A Use technology to determine theequation for the line of best fit and thecorrelation coefficient for the data from 1940through 1980.Part B Find the line of best fit and thecorrelation coefficient for the data from1940 through 2010.Part C Compare the correlation coefficients ofthe two data sets. What do they indicate?HABITS OF MINDwould he be waiting atMake Sense and PerseverePNot drawn to scA. Write an ex hours. Wstarts h houtime as Juan?C. How much of a head stB. Model With Mathequations to dete

I'll use R software for calculations.1> sales=c(1878,1772,1763,1748,1745,1611,1480,1382) 2>…

Answered: Performance the questions. THE DAILY…

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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B Salaries for 39 Engineers Employed by the Solnar Company B 9 0 1 12 83 34 35 36 37 Salary ($1000) 48 50 52 54 56 59 59 59 59 60 65 65 67 70 78 86 88 89 90 95 95 96 97 100 102 110 115 118 120 124 125 125 128 130 130 38 39 40 41 42 43 44 130 131 134 134 Years 1 1 1 1 2 5 2 2 4 7 3 4344 10 10 7 14 10 15 15 10 14 13 13 25 34 30 25 19 18 32 19 20 18 20 32 35 YearsSq 1 1 1 1 4 25 4 4 16 49 9 16 9 16 16 100 100 49 196 100 225 225 100 196 169 169 625 1156 900 625 361 324 1024 361 400 324 400 1024 1225 Male 0 0 1 1 0 0 1 1 1 0 0 0 1 1 0 1 1 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Years x Male 0 0 1 1 0 0 2 2 4 0 0 0 3 4 4 0 10 7 0 10 0 15 10 14 13 13 25 34 30 25 19 18 32 19 20 18 20 32 35 Leaming Copyright 2019 by The McGraw-Hill Companies This spreadsheet is intended solely for educational purposes by licensed users of Connect Note: The binary variable Male is 1 if the engineer is male, 0 otherwise
How do you do questions C and D?
Problems Calculate the answer to each problem. You may use your calculator. Show some work. 14. Consider the following data showing a sample of 20 car speeds (in mph) on Route 24. First is the raw data, then a frequency distribution in which the bins have been determined but have not yet been filled in. 57 60 62 63 65 65 65 67 68 70 72 74 75 78 79 81 84 86 91 98 Speed (mph) 50-59 60-69 70-79 80-89 90-99 Frequency 1 Relative freq. 5% a) The first column has been filled in as an example. Fill in the rest of the columns, both the frequency and relative frequency. Express the relative frequency as a percent. b) Sketch the relative frequency histogram for this data. symmetric skewed left skewed right c) Circle the shape of this histogram: d) Find the range. e) Find the mode. f) Find the median. g) Find the mean. h) Note that the mean is larger than the median. Why is that?
***ONLY QUESTION 6*** House prices are $1,000 each
What percentage of daily low temperature is between 45-49 degrees? Daily Low Temperature (°F) 35-39 Frequency Daily Low Temperature (°F) 55-59 Frequency 1 40-44 3 60-64 45-49 50-54 65-69 11 What percentage of daily low temperature is between 45-49 degrees? OA. 142% O B. 10.2% OC. 54.2% O D. 23.7%
r. The data in the following table are the statistics degree of 114 pupils Statistics 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 degree 1- Find x 1 12 21 17 16 20 18 2- Find S.D
10 11 12
The number of years that a couple has been happily married is an example of A nominal level data B ordinal level data C interval ratio level data D ordinary level data If the scores of an even number of cases are arranged from high to low, the median is A the middle score B the average of the two middle scores C the average of the highest and lowest scores D the same as the mode
A teacher asks their students whether they studied for a quiz, then scores the quiz. A relative frequency table displays some of the information they collected
Question Help ▼ The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter an one of three different lines that have formed at three teller windows. Answer the following questions. 7.9 7.9 7.1 6.7 Bank A 6.3 6.6 6.7 6.8 7.2 7.4 7.9 Bank B 4.2 5.3 5.8 6.2 7.6 7.6 8.5 9.3 10.0 Click the icon to view the table of Chi-Square critical values. Construct a 95% confidence interval for the population standard deviation o at Bank A. min < Opank A min (Round to two decimal places as needed.) Construct a 95% confidence interval for the population standard deviation o at Bank B min < OBank B min (Round to two decimal places as needed.) Internret the results found in the previous parts Do the confidence intervals suagest a difference in the variation amona waitina times? Does the sinale-line svstem or the multinle-line svstem seem to be a Click to select…
S An employee at Coconino Community College (CCC) is evaluated based on goal setting and accomplishments toward the goals, job effectiveness, competencies, and CCC core values. The categories, ratings, and weights for a particular employee are shown in this table. Weight % 2 Category Competency 1 Competency 2 Competency 3 Competency 4 Competency 5 Goal 1 Goal 2 Job Effectiveness Core Values Rating 3 2 4 2 4 4 4 3 2 433 3 20 2282 22 20 23 Compute a weighted average score for this employee. Round your answers to two decimal places. Average score for this employee:
Q 4 (a) Construct the frequency histogram, frequency Polygon, Cumulative frequency graph and Pie graph from the following data: C. I. 0-10 10-20 20-30 30-40 40-50 50-60 f 2 4 7 11 6 3 Q4 (b) Construct the frequency histogram, frequency Polygon, and Pie graph from the following data are of 20 students grades: A, C, B, D, A, C, D, B, C, C C, B, B, F, D, C, B, C, F, A Q4 (c) Find the mean, variance, standard deviation and coefficient of variation for the following data: 25, 17, 30, 20, 40, 15, 25, 30, 15, 20.

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