identify the levels of measurement of the following variables and explain Variable NameSexAgeSales RecordsPurchasesEducationalAttainmentCode and IndicatorsMeasurement0 = Female1 = Male1 = below 21 years old2 = 21 to 31 years old3 = above 31 years oldin US dollarsin US dollars1 = elementary2 = high school3 = college4 = graduate schoolLevels of Measurement

Following are the four levels of measurement through which a variable can be measured. Nominal…

Answered: Variable Name Sex Age Sales Records…

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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Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost-estimating purposes, managers use two hours of labor time for the plant- ing of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow (times in hours).2.1 2.2 1.7 1.6 2.3 3.1 1.5 2.6 2.4 2.2 With a .05 level of significance, test to see whether the mean tree-planting time differs from two hours. a. State the null and alternative hypotheses. b. Compute the sample mean. c. Compute the sample standard deviation. d. What is the p-value? e. What is your conclusion?
The data used is from college campuses. The variables used in the analysis below include: crime, total campus crime; enroll, total enrollment; police, employed officers. Use the estimated OLS models to answer the questions below: Model A: In(crime) = -6.631 + 1.270ln(enroll), (1.034) (.110) n = 97; R² = .5804 Model B: In(crime) = -4.794 + .923ln(enroll) (.144) (1.112) n = 97; R² = .632 +.516ln(police), (.149) Using Model A, test the null hypothesis that elasticity of crime with respect to enrollment is unit elastic, i.e. equal to one (against a two-sided alternative). Calculate the t-statistic.
calculate r and r2 and report the results in APA style
For the two following exercises, identify: a. the population, b. the parameter, c. the variable, i. A fitness center is interested in the mean amount of time a client exercises in the center each week. ii.A cardiologist is interested in the mean recovery period of her patients who have had heart attack.
The variable ( TV channel preference) is O a. Qualititativ variable b. None of the above O c. Quantitative variable
What is the correct answer?
Give me a summary of how I should analyze my likert scale data
This requires manual calculation as well as analyzing data using the statistical package R. The detailed rubric for this may be located in the guide as well as the document. You will be working with the KBP dataset provided in the course space. You will also need to use the document, Questions for KBP Survey. This document has selected questions as they appeared on the questionnaire that was administered to collect the data for this project. 1. Classify the variables by the levels of measurement used. Explain your choice of the levels of measurement. 2. Using R, generate a graph to represent the sample by alcohol usage in the past 4 weeks. What can you say about alcohol usage among this sample of young persons? 3. Using R, calculate the proportion of individuals by relationship status and report in a relative frequency distribution table. Respondents # Age of Respondent Sex of Respondents Relationship Status Age at first Sexual Encounter Practice Religion number of persons use…
1. Identify whether the variable in the information below is qualitative or quantitative. A nurse collects blood from kids and measure their blood-sugar content. This measure of blood-sugar concentration is a variable. a. quantitative b. qualitative c. qualitative as well as quantitative d. neither qualitative nor quantitative 2. Identify the technique for gathering data in the study below. A pharmaceutical firm wants test the effectiveness of a new drug. It wants to know if the new drug is significantly stronger than the conventional drug. This is a/an study. a. observational b. experimental c. census d. sampling 3. You want to plot a frequency graph of daily rainfall, with rainfalls (inches) on the horizontal axis. You will use a a. bar chart b. histogram c. cumulative frequency d. best fit line 4. Frequency of categorical data are displayed using a a. bar chart b. histogram c. time series graph d. best fit line
Please answer as substantial as you can. What is the importance of documenting the steps of a researcher in conducting the study?
Examine the variables of interest for the following situation and identify the type and level of measurement of each variable. In applying for a credit card, the following information are being asked for from each applicant a. nationality b. number of dependents c. length(months) of stay in present address d. residence type (renting, fully owned, company residence, etc) e. class of municipality where the residence is found (low, middle, high income) 3 b C d e VARIABLE TYPE LEVEL
Data was collected for a sample of organic snacks. The amount of sugar (in mg) in each snack is summarized in the histogram below. Which statement below best describes the meaning of the second bin (or class)? A. There were 65 snacks that contained 2 milligrams of sugar. B. There were 2 snacks that contained between 65 and 70 milligrams of sugar. C. There were 2 snacks that contained 65 milligrams of sugar. D. There were between 65 and 70 snacks that contained 2 milligrams of sugar. E. There were 2 snacks that contained 70 milligrams of sugar. F. There were 70 snacks that contained 2 milligrams of sugar.

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