What is non probability sampling and explain the types of the sample

Q: Find the sample variance for the following data set  22 12 23 17 21

A:

Q: Examine any three (3) aspects evaluated in pilot testing a questionnaire in a research study

A: The objective of this question is to identify and explain three key aspects that are evaluated…

Q: An avant-garde clothing manufacturer runs a series of high-profile, risque ads on a billboard on…

A: A Pareto chart is a graphical representation of information that shows the recurrence of events in…

Q: Data was collected on the number of television sets in a household and it was found that the mean…

A: To find the standardized value (or z-score) corresponding to 6 televisions, we use the formula for…

Q: Using the frequency distribution below determines the first upper class boundary  Height inches…

A: In a frequency distribution, the upper class boundary is the highest value that can fit into a…

Q: DEFINE Acceptance sampling

A: Acceptance sampling refers to the statistical measures that are used in controlling the standards.…

Q: ’cause-effect graphing’ which was sometimes used to help derive the decision table

A: The cause- effect graphic is a kind of old way technique.

Q: Define statistical database.

A: Statistical research is used extensively in organizations so that past performance can be used to…

Q: Why is randomization important in an experiment?

A: Randomization is important because : Randomization, which helps to reduce bias, can increase the…

Q: When a marketing researcher who is performing an exploratory research study has researche people in…

A: Market research is a process to gather important data from the market for making certain decisions.…

Q: Stratified random sampling is a method of sampling that involves the division of a population into…

A: True

Q: In deciding when it is safe to generalize from a sample, we should keep three principles in mind.…

A: The generalization of the findings from one sample can only be done for the population of similar…

Q: The first person to compare fingerprints in a criminal investigation was: Group of answer choices…

A: Fingerprints can be stated as the small or tiny ridges, whorls, and valley design or pattern on the…

Q: b) Caitlyn has to determine how many of the 120 employees in her work place has comprehensive car…

A: Below is the solution:-

Q: Explain the four  control process  Establish performace stanards Measure actual perfomane…

A: Control is the most important management function which is basically a system. Control system can be…

Q: What does the z-score of a data point tell us? Group of answer choices How many standard deviation a…

A: Z-scores play a crucial role in statistical analysis, providing a standardized measure to assess the…

Q: In representing qualitative data, we might use a) Histograms b) Scatter plots c) Pie charts d)…

A: Qualitative data can be stated as the descriptive and conceptual knowledge or data gathered through…

Q: Critique the following research designs in terms of sampling, non-response, and quality of resultant…

A: Answer 1. A supermarket is interested in determining its image. It used to drop a short…

Q: 10 Snow ball sampling are a. non- probability sampling b. essentially judgmental sampling c. Same as…

A: Sampling is a method of choosing individual segments or a subset of the community to execute…

Q: Discuss for the manager the steps to take to conduct a sample survey.

A: A survey is an examination strategy utilized for gathering information from a predefined gathering…

Q: state merits and demerits in collecting data of a questionnaires. Describe main aspects of a…

A: Data collection refers to the process of collecting information for use in research and…

Q: order to gain the most value out of their investments in information technology, businesses should…

A: Information technology (IT) is a critical component of modern business operations, and implementing…

Q: As a researcher, you want to determine the courses that the grade 12 students would like to take in…

A: Data collection means collecting data through questionnaires, interviews, emails in order to collect…

Q: List two (2) advantages and Two (2) disadvantages of the Observation Method of datacollection.

A: The Observation Method of data collection involves directly observing subjects in their natural…

Q: Effect of over sampling/under sampling

A: In data mining and data analytics, oversampling and under-sampling are used to balance out…

Q: Why is it important to select an appropriate sampling strategy?

A: There are various sample strategies, these could include random sampling, systematic sampling,…

Q: Assume the president of the homeowners association in Happy Valley Subdivision has decided to…

A: 1.To find if the survey to be a sample or census of happy valley subdivision homeowners. The two…

Q: Discuss at least 2 different data collection methods you could use.  What are the differences…

A: Data collection is a fundamental step in any research process, aiming to gather relevant information…

Q: 2 possible causes of trending patterns for the x-bar chart

A: An X-bar chart is a type of control chart which representing whether a process in control or not by…