Ünite Sınavı Soruları

20 soru
Soru metinleri açık; şıklar ve cevap anahtarı uygulamada

1

Researchers collected data from 100 men aged 40 of whom 50 have been smoking a pack of cigarettes a day for 5 years while the other 50 have been smoke free for 5 years. They measured their lung capacity for each of the 100 men, analyzed, and drawn conclusions from the collected data.

According to the study described above, what type of study is it?
2
1. Element
2. Variable
3. Concept
4. Case
Which of the above are the key components of a data set?
3
"Which type of transportation vehicle do you use most often?

Answer:.............................................................."

Which type of questionnaire question is the one above?
4
Researchers wanted to evaluate the effectiveness of eKampüs Anadolum system at the end of the semester with a questionnaire. In this questionnaire, students were asked to indicate how often they used the system by marking on the following scale:

(1) none
(2) 1-2 times in the semester
(3) 1-2 times per month
(4) 1-2 times per week
(5) Every day

According to the description given above, what type of question is this?
5
In this type of measurement scale, there is a natural or zero-valued base value that cannot be changed. What is the name of this scale?
6
1. data is collected based on what is seen or heard
2. researcher do not intervene to the subjects
3. variables might be manipulated by the researcher
Which of the above is/are the characteristics of observational studies?
7
Which scales of measurement have a natural or zero-valued base value that cannot be changed?
8
An advertisement company conducts a survey on parfume preferences of adults in a city in which the half of the population is female. The researcher collects a sample of 200 people of whom 170 are male.

What type of error does the researcher make?
9

Which statement below is correct about the table above?
10

Which statements below are correct about the table above?

I Mark's weekly wage being 320 is a data set.

II Being 56 years old male, Mark's earning 320 dollars per week is a case.

III Mark's being male is a qualitative data.

IV Mark's being 56 years old is a qualitative data.
11
We ask the students to number the most important language skill for them in their academic classes as 1 and the least important one as 2. Which option below best describes this measurement?
12
We ask each customer to rank order the three brands by assigning number 1 to the most preferred brand. Customers assigns Number 2 to the next most preferred brand and so on. Which scale is used in this study?
13

What are the gray, orange and green highlighted places in the dataset table above, called respectively?
14
Which of the following is an internal data source for the firm?
15
In a salary data example, the frequency table shows that there are 20 workers of whose weekly salaries are between 415 and 525 dollars. Which of the below should we use if we need to know, for example, how many workers earn under 525 dollars?
16

There is a data set of clinic’s patients above. Which of the following statements about this table is false?
17
Which of the following scales have a natural or zero-valued base that cannot be changed?
18
Customers asked to respond to the following statement. “The picture quality of your TV is satisfactory”. Customers responded to the statement as 1=Strongly Disagree, 2=Disagree, 3=Undecided, 4=Agree, and 5=Strongly Agree.

If the measurement categories and the number of responses within a given measurement category are used, what method of data organization is implemented in the case specified above?
19

Which type of response does the question above require?
20
Which of the following terms stands for errors caused by unknown and unpredictable factors?

Şıkları ve doğru cevapları görStatıstıcs I (ENG) dersinin tüm sınavları, cevap anahtarları, süreli mod ve yanlış analizi uygulamada.Uygulamada aç