2. Classify the nature of each of the following statements as inferential or descriptive.a) A family of four or more averages Php 600.00 a week on grocery purchasesb) Sixty percent of all grocery purchases are unplanned.c)In 2018, at a certain store, a total of 18,143 grocery items were purchased.d) Each year 41% of new products introduced in department stores failede) e) The number of different grocery items stocked in a typical store in 2017 was10,430

Descriptive Statistics : In descriptive statistics we summarize the characteristics of the data…

Answered: 2. Classify the nature of each of the…

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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Which of these is an example of Simpson’s paradox? A) Teachers’ salaries and sales of alcoholic beverages have risen together over time, but paying teachers more does not cause higher alcohol sales. B) Alaska Air has a lower percent of late flights than America West at every airport, but America West has a lower percent when we combine all airports. C) The percent of surgery patients given Anesthetic A who die is higher than the percent for Anesthetic B, but this is because A is used in more serious surgeries. D) States in which a smaller percent of students take the SAT exam have higher median scores on the SAT.
a) Which region of the pie chart represents the percentage of income spent on your car in a given month? b) If your paycheck is $2800 a month, how much of your income in dollars should be allotted toward your rent or mortgage?(Include dollar sign but no commas) Income Distribution House 30% Food 20% Car 10% Debt 25% Misc. 15%
b) Given below are the closing prices for the Dow Jones Industrial Average (DJIA) and the Standard & Poor's (S&P) 500 Index over 10 weeks. 10,421 10,110 9,872 10,455 9,920 10,592 11,213 10,933 11,134 10,316 1,379 Dow Jones S&P 500 1,356 1,343 1,470 1,399| 1,463 1,629 1,499 1,516 1,355 Use descriptive statistics (mean, median, range standard deviation, variance) to compare these 2. Which index has higher variability
29. Company X pays its 50 employees a mean monthly salary of Php19,500; a second company Y pays its 62 employees a mean monthly salary of Php24,500; and, a third company Z pays its 75 employees an average monthly salary of Php28,000. What is the average monthly salary per employee in all the three companies? (Round off answer to the nearest peso.) O A. Php 24,000 O B. Php24,500 C. Php24,567 D. Php28000
Date DJIA S&P 500 January 6 12,360 1,278 January 13 12,422 1,289 January 20 12,720 1,315 January 27 12,660 1,316 February 3 12,862 1,345 February 10 12,801 1,343 February 17 12,950 1,362 February 24 12,983 1,366 March 2 12,978 1,370 March 9 12,922 1,371 March 16 13,233 1,404 March 23 13,081 1,397 March 30 13,212 1,408 April 5 13,060 1,398 April 13 12,850 1,370
Q.5 Collect the ages (in years) of all of your immediate family members (parents, siblings) and extended family members (grandparents, aunts, uncles, cousins). You should gather no more than 20 ages (in the case that you have a large family). a) Construct a table, with all the data present, that shows the individuals, their relationship to you, and age. b) Draw a pie graph, with percent labels, that shows the amount of individuals in the age categories below. babies (0 1); children (2 12); teens (13 - 19); young adults (20 - 29); adults (30 - 69); seniors (70 +). c) Find Mean, median, and mode age for all data. d) Find out variance and standard deviation for data.
A corporation is interested in estimating the total carnings from sales of colour television sets at the end of a three-month period. The total earnings figures are available for all districts within the corporation for the corresponding three-month period of the previous year. A simple random sample of 13 district offices is selected from the 123 offices within the corporation. a) b) c) Use a ratio estimator to estimate the total earnings at the end of the three-month period. - 128,200. Take x Use the data below and find == 1 - 582 2 different ways using both the formulac Sp» = πλη (Σy, – Rxg)* = 1, Σy? - 28 Σx,y, + Σx?] n-1 12-1 Estimate the standard error (standard deviation) of your estimate.
11. In a nursing home, a program is launched in 2005 to asses the extent to which it’s residents are affected by diabetes. Each residents are affected by diabetes. Each resident has a blood test, and 48 of the 625 residents have diabetes in 2005. Residents who did not already have diabetes were again tested in 2010, and 57 residents had diabetes. a. What is the prevalence of diabetes in 2005? b. What is the cumulative incidence of diabetes over 5 years? c. What is the prevalence of diabetes in 2010 (assume that none of the residents in 2005 have died or left the nursing home)?
According to the chart: a) is it true that more than 50% of the population of USA and Mexico are either overweight or obese? b) is it true that more than 50% of the USA and Mexico MALES are either overweight or obese? c) is it true that being overweight is substantially more prevalent in India than obesity? d) is it ture that obesity is highly prevalent in China?
Date DJIA S&P 500 January 6 12,360 1,278 January 13 12,422 1,289 January 20 12,720 1,315 January 27 12,660 1,316 February 3 12,862 1,345 February 10 12,801 1,343 February 17 12,950 1,362 February 24 12,983 1,366 March 2 12,978 1,370 March 9 12,922 1,371 March 16 13,233 1,404 March 23 13,081 1,397 March 30 13,212 1,408 April 5 13,060 1,398 April 13 12,850 1,370
1. A new shipment of RTW and accessories arrived. Reena's RTW shop acquired. The following items. Items quantity price per item discount rate a. jogging pants 3 dozen Php 125 15 % , 10 %, 5% 4 dozen 15 pairs 5 dozens b. Printed shirts Php 72.60 8%, 6 % c. Rubber sandals Php 169.80 Php 85.95 Php 58.00 10 % , 6 % , 2 % d. Neckties 5%, 3% % e. make - up kit 2 dozen 12 %, 7% 1.1. Find total price per item. 1.2. Find selling price after the first discount of every item. 1.3. Find Net price using method A. 1.4. Find Net price using method B.
1) The annual salary of 30 NFL players is listed below, in millions of dollars. 12.6 8.4 1.7 6.3 4.8 2.5 21.6 18.7 11.1 6.9 2.7 8.5 23.7 2.6 11.2 5.9 7 25.2 1.2 3.8 9.3 10 16.2 2.5 1.6 0.7 3.8 4.9 5.5 7.5 a. Find the relative frequency distribution for each pay range. Score range Frequency Relative Frequency 0-4.9 5-9.9 10-14.9 15-19.9 20-24.9 25-29.9

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