What is the difference between a single-step (cross-sectional) and multistep survey? Explain the purpose of each type of survey and when they would be used.
Ans) Single-step- Gathering primary data from individuals or groups within a single contact, i.e.- written questionnaires & interviews, Multi-step survey- collect the data requires more than 1 contact.
Single step (cross- Sectional):
- written questionnaires
-face to face interviews
-telephone interviews- RDD
-electronic interviews
-group interviews
Multistep survey:
- A multi-step form is a long form that is broken into multiple pieces. They're used to make long forms, such as shipping or registration forms, less intimidating and daunting.
What is the difference between a single-step (cross-sectional) and multistep survey? Explain the purpose of each...
What is the difference between a single-step (cross-sectional) and multistep survey? Explain the purpose of each type of survey and when they would be used.
What is the purpose to use the leave-one-out cross-validation? Please explain the difference between the ridge regression and LASSO.
1. What is the difference between cross-sectional and time-series ratio analysis? What is benchmarking? 2. When performing cross-sectional ratio analysis, the analyst should pay primary attention to what types of deviations from the norm? Why? 3. Why is it preferable to compare ratios calculated using financial statements that are dated at the same point in time during the year?
What is ratio analysis? Explain the purpose and usefulness of this analysis. What are the limitations of ratio analysis? What is the difference between a time-series analysis and a cross-sectional analysis? Is one preferred over the other?
the difference between a cross-sectional study, prospective study, and retrospective study
Discuss the difference between a variable and a parameter. Include an example. In completing a survey, respondents use the following numbers to indicate ages. 1 = age 19 years and under, 2 = 20 to 29 years of age 3 = 30 to 39 years of age, 4 = age 40 years and older Is this data qualitative or quantitative? Explain. Explain the difference between the terms “variable” and “data.” Include an illustration that demonstrates this difference. List...
Q3. What is the major difference between single quotes and double quotes? Explain each with a proper example. Q4. 121 How user application program request any services from the kernel of the operating system? Explain all its process briefly.
2.What is the purpose of having an “overflow” flag? 3.Explain the difference between the C and V flags 4.Why is addition and subtraction so important in digital design? . 6.Why would modular design be so important in creating large, complex designs?
A major artery with 10 mm cross-sectional diameter branches into 16 smaller arteries each of cross-sectional diameter 6 mm. By what factor is the speed of blood flow reduced when it passes into the branches?
Problem 4: Narrow-Base Diode Consider an ideal pn* step-junction Si diode maintained at 300K with cross-sectional area A = 104cm2. The doping concentration on the p-type side is Na= 1017 cm3 (uncompensated). (The n-type side is degenerately doped.) The electron recombination lifetime in the p-type region is tn = 10-6 s. The width of the quasi-neutral p-type region is 1 um, for VA=0 V. a Is this a narrow-base diode? Justify your answer. b) Calculate the diode saturation current Io....