7. Qualitative data is collected using open-ended questions and is subject to the interpretation ofthe researcher.Truea)b)False

We need answer if the given statement that the qualitative data is collected using open-ended…

Answered: 7. Qualitative data is collected using…

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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7) What is the mean of the data shown in the accompanying table? Scores Frequency (X) () 25 3 20 2 11 5 10 4 A) 11 B) 15 C) 14.5 D) 16
Mean sample is a 1) Parameter 2)Statistics 3) variable 4)Constant
2. Below is data on the number of vehicles involved in a fatal crash and city in California during 2019. City Single-ve Two-vehicle hicle crash fatalities Los Angeles 175 San Diego 61 San Jose San Francisco Fresno 49 22 33 Sacramento 28 Long Beach 26 crash fatalities 69 19 19 a 13 2. Is there enough evidence to support that the number of vehicles involved in a crash is related to the city in which the accident occur? null and alternate hypotheses test statistic, critical value and/or p-value expected counts reject or fail to reject the null hypothesis ● conclusion in plain English
There is a correlation between ice cream sales and crime rates. What can we conclude from this? A) Ice cream leads to more criminality B) Committing a crime makes an individual want ice cream C) Criminality is a sufficient, but not necessary, condition for ice cream sales D) There is likely a spurious relationship between ice cream sales and crime rate
13. The sign of the alternative hypothesis in a two-tailed test is always A. C. greater than D. less than equal B. not equal 14. This hypothesis states that there is no difference between population parameters and the hypothesized value. A. hypothesis B. alternative hypothesis C. null hypothesis D. two-tailed hypothesis 15. "The ratings given by male and female students with regard to the online teaching skills of their teachers is the same." This statemen example what kind of hypothesis? A. one-tailed hypothesis B. alternative hypothesis C. null hypothesis D. two-tailed hypothesis 16. "The use of social media as modern approach of advertising will increase the demand for a new product." This is an exam __hypothesis. A. Mean B. null C. alternative D. two-tailed 17. Which is the correct alternative hypothesis for one-tailed test? A. µ = 25 B. µ # 25 C.µ ≥ 25 D. p < 25 18. Mrs. Nazareth conducted a research on the preference of residents of Mayapa in choosing their venue for occasions.…
Persons who visit the restroom of a certain fast-food outlet were asked to state their opinion of the quality of the restroom facilities, The following tables show the responses rom a sample of 100 persons. Gender of Respondents TOTALS MALE FEMALE Quality of facilties Above Average 8 7 15 Average 26 24 50 Below Average 7 28 35 Totals 41 59 100 A X2 test is carried out to determine whether there is an association between the gender of persons and their opinion.i) State appropriate null and alternative hypotheses ii) Determine the critical region of the test at…
14. A total of 12 participants were randomly assigned to one of three treatment groups: antidepressant medication ("drug"), weekly psychotherapy ("therapy”), or no treatment ("control"). Depression scores were collected 8 weeks after treatment began. We want to know how effective the depression treatments were (that is, do the mean depression scores differ between groups?). Drug Drug Drug b) Determine what test to use. Drug Therapy Therapy Therapy Therapy Control Control Control Control a) What are the null and alternative hypotheses? 8 9 14 6 12 7 15 8 22 25 18 20 c) Determine alpha, how many tails are there, what are the df and find a critical value.
19. THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:" Starting with a sample of two values 70 and 100, add three data values to your sample to obtain a new sample with certain statistics. 19g) What are the three data values such that the new sample has a mean of 100, a median of 70, and a mode of 87? Justify your answer.
26
Express the alternative hypothesis in symbolic form. A psychologist claims that the mean amount of time (in hours) that females spend in talk therapy is more than that of men. Assume that two samples are independent. Let the female talk therapy times be the first population and the male talk therapy times be the second population.
9. A student researcher is assigned the task of finding out if the level of education attained by a person depended on the income class to which he/she belonged. He interviews 60 persons. The results are recorded on the table below. Level of Income Bracket Education A в Attained High School 15 Graduate College Graduate With MA/PhD Degrees 2 10 3 4 5. The student applies a test of independence at 5% level. What is his conclusion?
Is it true that the two means which are declared different by Scheffe’s test is also different by Honest Significant Difference Test or no?

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7. Qualitative data is collected using open-ended questions and is subject to the interpretation of the researcher. a) b) True False