B. Determine which measure of central tendency is appropriate to use in making thefollowing reports.4. Daily Meal Allowance of learners in a school to be used by the canteenmanager to plan for a daily menu.5. Daily waste material of a community during the month of January.6. Daily profit of a company for each month from March to December 2020 todetermine the least productive month during the COVID-19 pandemic.7. Answers of learners on the survey whether they prefer something sweet/salty/ bland taste for their snacks. This will be used by the canteen manageron what snack to prepare.1.11

B. 4. Daily Meal allowance of learners in a school to be used by the canteen manager to plan for a…

Answered: B. Determine which measure of central…

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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1. (30 Points) Consider the following table where the production quantity of a welding process is presented for different pressure levels (low, medium, and high). By using 5% significance level, test whether the pressure level has an impact on the average production amount. Explicitly show all of your computations and clearly demonstrate how you reach your conclusion. Low Medium High 31 35 25 25 32 34 33 33 35 41 30 33 32 37 39
1) a.What is/are the appropriate measure(s) of central tendency for each of the variables in Columns B-F? Explain your answers in no more than two sentences each. b. Calculate the measures of central tendencies above c. Imagine that a 21st run is added to your dataset. See the table below for its data Run Eth. Gly. Acid. Temp pH 21 18.2 7.2 2.1 18 4.2 d. Do these data points change your choices of central tendency reported in Question 2b? Explain your answer. Attached dataset; a b c d e f Run Ethanol Glycerol Acidity Temp pH 1 4.8 3.5 0.84 24 3.8 2 9.6 7.3 0.27 24 3.8 3 10.2 7.2 0.27 24 3.8 4 8.5 5.1 0.55 24 3.8 5 7.3 3.2 0.68 24 3.1272 6 4.8 1.2 1.24 30 4.2 7 7.9 4.4 0.65 18 3.4 8 6.7 4.3 0.65 30 3.4 9 9.8 6.9 0.47 24 3.8 10 10.2 7.2 0.32 24 3.8 11 9.8 5.8 0.51 24 3.8 12 10.2 7.5 0.28 24 3.8 13 8.2 5.1 0.49 18 4.2 14 7.1 3.9 0.6 18 3.4 15 8.2 4.8 0.46 13.908 3.8 16 5.6 3.3…
The Big Mac index is a way of measuring Purchasing Power Parity (PPP) between different countries. By diverting the average national Big Mac prices to U.S. dollars, the same goods can be informally compared. The Big Mac can also be a good indicator for the individual purchasing power of an economy since he exists worldwide in standard size, composition and quality. Price # of Countries Rel. f. Cum. f 1.50-1.99 2 2.00-2.49 4 2.50-2.99 7 3.00-3.49 9. 3.50-3.99 7 4.00-4.49 8 4.50-4.99 9 5.00-5.49 7 5.50-5.99 1 6.00-6.49 2 6.50-6.99 1 a. What is the statistical name of the table above? b. How many countries were sampled? c. State the class width. d. Calculate the mean and standard deviation of the average prices of a Big Mac worldwide. Attach correct symbols and units to your answers. Explain how you obtained your answers.
11. Give an example of a set of data that satisfies the following conditions. has 8 data bimodal median = 10 mean = 10
2.1 The Australian Bureau of Statistics (ABS) has recently released a report on the relationship between international students’ ethnicity and enrolments in higher education. Identify the dependent variable(s) and the independent variable (s) in the above scenario.
3. What percentage of College students have made at least one online purchase in the last three months? To answer this question, a market researcher surveyed 200 college students. Of those surveyed, 76 said that they had made at least one online purchase (a.) What is the parameter of interest in this study? (b.) Calculate the corresponding point estimate of the population proport
1. Explain the MVA table based image.
13. What is the Relative Risk for these data?
15. Estimate the standardized death rates from the following data : Death Rate per 1000 0008 Age group (in years) Standardized Population (in lakh) Country I Country II Below 5 20.00 5.0 100 5-14 1.00 0.5 200 15-24 1.40 1.0 190 00 eec 25-34 2.00 1.0 180 ere 35-44 3.30 T28-00002 2.0 120 100 bluow oidst ofil eeneld srtt qu pnillit oa 0 45-54 7.00 5.0 55-64 15.00 12.0 70 65-74 40.00 35.0 308V 75 and above 120.00 200-0 ABe 0110.0 00 000,08 10 57 2 4000
3. Scenario It is believed that large doses of acetaminophen (the active ingredient in over the counter pain relievers like Tylenol) may cause damage to the liver in nearly half of those tested. A researcher wants to conduct a study to estimate if the proportion of acetaminophen users who have liver damage is the same as previously reported. For participating in this study, he will pay each subject $20 and provide a free medical consultation if the patient has liver damage. Part A If he wants to limit the margin of error of his 98% conﬁdence interval to 2%, what is the minimum number of subjects he needs? (answer should be in the form of x,xxx) the minimum amount of money he needs to set aside to pay his subjects? $ (answer should be in the form of $xx,xxx) Part B The amount you calculated in Part A is substantially over his budget so he decides to use fewer subjects. Will this change increase or decrease the width of his conﬁdence interval? Will this new confidence interval be…
Estimating income tax based on dividends is also not straightforward, due in part to Australia’s franking credit scheme. Mike is looking to simplify total annual tax projections for a share portfolio based simply on the share portfolio's current value. To do this, he wishes to determine if there is any statistically significant linear relationship between the two. Mike has randomly sampled 30 individuals with share portfolios over AUD$100,000 and mapped the assessed value of the portfolio (in AUD $1000) to the total taxes paid on that amount (in AUD$1). Mike's data is in the table below. Assessed Value Taxes 426.1 5014 368.8 3698 309.8 3691 373.9 5189 445.7 4455 505.1 5189 342.3 3416 343.6 3931 432.3 4393 329.2 3267 291.2 2871 399.3 4013 392.7 4728 482.2 4885 480.6 4888 390.8 3917 371.6 3738 311.9 3098 343.7 3633 304.7 3538 274.6 3427 457.1 4633 231.5 4009 450.5 4565 510.1 5946 308.4 3045 348.8 3504 410.4 3375…
A. Identify the Level of Measurement for each of the following variables 1. Price of raw materials 2. Aperson's occupation 3. Advertising costs 4. Length of time before a device fails 5. "Star" rating of hotels. 6. Product satisfaction as "Very Unsatisfied, Fairly unsatisfied, until Very satisfied" 7. Types of investments (Stocks, Bonds, others) 8. Standardized exam score (eg. Board exam score) 9. Time (in minutes) it takes students to complete a statistics test 10. Time to execute a command in a computer program B. Identify if the quantity reported is a Parameter or a Statistic 1. Inastudy of Filipino Airlines flights from Japan tothe Philippines, 68 flights are randomly selected and the average (mean) arrival time is 9.2 minutes late. 2. A sample of 120 employees of a company is selected, and the average age is found to be 37 years. 3. Ina study of 320 babies born at four different hospitals in Baguio, it was found that the average weight at birth was 3.175 kgs. 4. Afterinterviewing…

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