Which student provided a variable which can be obtained by counting?
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Q: Age 21 to Age 36 to 35 50 ", = 18 n2 = 22 = 45 X2 = 50.4 s3 = = 144 s5= 51.84 (The first row gives…
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Students were asked to provide an example of a variable they have encountered in their day-to-day life. Their responses are as follows:
![Student
Lungani
Nsika
Thembekile
Mduduzi
ABCD
Variable
B.
The body temperature of a patient diagnosed with COVID-19
The price of a technology company stock on the NASDAQ
The age of his bull mastiff
Which student provided a variable which can be obtained by counting?
A.
Nsika
Lingani and Nsika
C. Thembekile and Mduduzi
D. Mduduzi
The number of female students in Mduduzi's Python class](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F37c20654-6c19-472d-a09f-4d828dd446fe%2F75b4e341-96a8-42c1-ba79-a471efa40e1e%2Ftzpvhbd_processed.png&w=3840&q=75)
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- Thompson Photo Works purchased several new, highly sophisticated processing machines. The production department needed some guidance with respect to qualifications needed by an operator. Is age a factor? Is the length of service as an operator (in years) important? In order to explore further the factors needed to estimate performance on the new processing machines, four variables were listed: x1 = Length of time an employee was in the industry x2 = Mechanical aptitude test score x3 = Prior on-the-job rating x4 = Age Performance on the new machine is designated y. Thirty employees were selected at random. Data were collected for each, and their performances on the new machines were recorded. A few results are: Performance on New Machine, Length of Time in Industry, Mechanical Aptitude Score, Prior On-the-Job Performance, Age, Name y x1 x2 x3 x4 Mike Miraglia 118 11 343 122 50 Sue Trythall 116 8 307 128 21 The equation is: yˆ = 10.2 +…Wall Street financiers 3,800 4,100 2,200 5,300 artists 1,300 1,700 2,300 2,100 Consider a research design in which four Wall Street financiers and four artists are measured on calorie intake. Their occupation is what sort of variable, standing in as the independent variable? (This is a very short answer).Denfine each of the following terms in the context of experimental design. a. Response variableb. Factorc. Levelsd. Treatments
- Suppose that, as part of a research methods class, Bailey was asked to write a summary of a research paper on the topic of the effects of visitor traffic on the relative humidity in bat caves. Identify the explanatory and the response variables. The number of visitors and the relative humidity are the response variables. The number of visitors is the response variable, and the relative humidity is the explanatory variable. The number of visitors and the relative humidity are the explanatory variables. The number of visitors is the explanatory variable, and the relative humidity is the response variable.Which of the following variables is not a qualitative or categorical variable? Species: Warbler, Wren, Owl, etc. Moth Type: 1 = Peppered, 2 = Melanic Moth Type: 1 = Peppered, 2 = Melanic Age at Death: 0-116You may need to use the appropriate technology to answer this question. A travel association reported the domestic airfare (in dollars) for business travel for the current year and the previous year. Below is a sample of 12 flights with their domestic airfares shown for both years. CurrentYear PreviousYear 345 315 526 451 420 474 216 206 285 275 405 432 635 585 710 650 605 545 517 547 570 496 610 580 (a) Formulate the hypotheses and test for a significant increase in the mean domestic airfare for business travel for the one-year period. H0: ?d = 0 Ha: ?d ≠ 0 H0: ?d < 0 Ha: ?d = 0 H0: ?d ≥ 0 Ha: ?d < 0 H0: ?d ≤ 0 Ha: ?d > 0 H0: ?d ≠ 0 Ha: ?d = 0 Calculate the test statistic. (Use current year airfare − previous year airfare. Round your answer to three decimal places.) Calculate the p-value. (Round your answer to four decimal places.) p-value = Using a 0.05 level of significance, what is your conclusion? Reject H0. We can conclude that…
- lecture(12.9d): identify the following variables as categorical or numerical: (a) The age of children in months who have completed Peabody Vocabulary test. (b) The amount of time that children spent watching TV. (c) The type of program that children watch on TV.You may need to use the appropriate technology to answer this question. A travel association reported the domestic airfare (in dollars) for business travel for the current year and the previous year. Below is a sample of 12 flights with their domestic airfares shown for both years. CurrentYear PreviousYear 345 315 526 475 420 474 216 206 285 263 405 432 635 585 710 650 605 545 517 547 570 496 610 580 (a) Formulate the hypotheses and test for a significant increase in the mean domestic airfare for business travel for the one-year period. H0: μd ≥ 0 Ha: μd < 0 H0: μd ≤ 0 Ha: μd > 0 H0: μd ≠ 0 Ha: μd = 0 H0: μd < 0 Ha: μd = 0 H0: μd = 0 Ha: μd ≠ 0 Calculate the test statistic. (Use current year airfare − previous year airfare. Round your answer to three decimal places.) Calculate the p-value. (Round your answer to four decimal places.) p-value = Using a 0.05 level of significance, what is your conclusion? Reject H0. We can conclude…The data below represent the responses to two questions asked in a survey of 40 college students majoring in business: What is your gender?(M=male;F=female) and What is your major? (A=Accounting; C=Computer Information Systems; M=Marketing). Complete parts (a) and (b). Gender Major F M M M F C F A M A M C F M M C M A M M M M M C M C M M M M F A M A M C F C F C M A F M F M M A M A F A F A F A M C F M M C M A F M F C F M M A M C M A M C F A ally the data into a contingency table where the two rows represent the gender categories and the three columns represent the academic major categories. Student Major Categories Gender A C M Totals Male Female enter your response here enter your response here enter your response here enter your response here Totals enter your response here enter your…
- Part A. Depression affects many people. 25 out of 100 people with untreated depression will lose at least one friendship while not receiving treatment. On the other hand, when people with depression are treated with medication and counseling, only 2 out of 100 will lose at least one friendship during treatment. The absolute risk of losing at least one friendship while dealing with untreated depression is Answer: Blank / blank= blank = blank %The Ministry of Manpower conducted an analysis of retail workers. A random sample of workers was asked a series of questions regarding workplace satisfaction and personal circumstances. Some of the variables and their definitions were as follows: AGE: GENDER: SALARY: POSITION: SERVICE: TRAVELTIME: the age of the worker (in years). the worker's gender. the worker's annual salary (in dollars). the worker's occupation within the industry, coded as 1= Sales Assistant, 2=Supervisor, 3-Manager. the length of service with current employer (recorded in days) the time the worker took to travel to work on their last work day before the interview (in minutes).A study collects information on the following variables from drivers: number of miles driven since your last fill up, gallons of gas remaining in your tank. We wish to create a scatterplot illustrating the relationship between the two variables. Which variable would you use as the explanatory variable? O number of miles driven since your last fill up O gallons of gas remaining in your tank Which variable would you use as the response variable? O number of miles driven since your last fill up O gallons of gas remaining in your tank
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