Sampling Part I

Arbitrarily, NY Times selecting a location on Brooklyn Bridge to interview passerbys as being NYC residents about their opinion regarding CUNY funding is an example of   a. media sampling   b. cluster sampling     c. non probability sample   d. random sample

1. The “t” test for samples from a normal population must be used when_____________.A. The sample size is small.B. Standard deviation is unknown.C. Sample size is small and the standard deviation is unknown.D. Sample size is big and standard deviation is known

QUESTION 3 Archeologists plan to examine a sample of 2-meter square plots near an ancient Greek city for artifacts visible in the ground. They choose a certain number of separate samples of plots from floodplain, coast, foothills, and high hills. What kind of sampling strategy is this? a. A cluster random sample b. A simple random sample, SRS C. A systematic random sample d. A stratified random sample Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answe OCT 19 étv

5. A market research company wishes to find out whether the population of students at a university prefers brand A or brand B of instant coffee. A random sample of students is selected, and each students is asked first to try brand A and then to try brand B , or vice versa (with the order determined at random). They then indicate which brand they prefer. This is an example of an experiment. b. а. an observational study a stratified sampling design. a randomized block design. a systematic sampling design. с. d. е.

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-Explain Non Probability Sampling - Examples of Non probability sampling

Side-by-side box plots are typically a good way to begin the analysis when comparing two populations. a. True   b. False

3) The major variable is the central idea of the entire literature. Its sub-variables help specify which  particular aspect of the major variable is being referred to. The indicators, on the other hand, are  specific information that describes the sub-variables.  Examples:  Major variable: Study habits  Sub-variable: Time required for studying, methods of studying, and place for studying Indicators: Employing patterned time intervals for effective studying: using mnemonics in  memorizing the terms; and studying in one's ideal environment   Instructions: Identify the major variables, sub-variables, and indicators of the examples of literature review. Example 3:  On leadership Competencies and Management Skills  (refer to the photo for the details)

21. Stratified random sampling is a method of sampling that involves the division of a population into smaller groups known as strataSelect one:TrueFalse

10-Which one of the following is not an example of non-probability sampling technique? a. Convenience sampling b. Quota sampling c. Judgement sampling d. Cluster sampling

11. Matching the sampling method with the most appropriate description One potential participant is identified, then asked for recommendations for other people to contact for the study. Researchers minimize costs to participants by recruit people living within a particular residential area that offers an easy commute to the study location. Recruitment materials are sent to a random selection of people within 15 Connecticut towns selected at random from state demographic records. The political party affiliation of every registered voter in Connecticut is tallied to determine proportional representation. The Office of Student Life sends survey invitations to random members of each graduating class until they receive a number of responses proportional to the relative size of each class. The Trinity Athletics department asks coaches to help recruit their athletes for participation in a survey of satisfaction with care from the trainer's office. A high school sends a survey to a random…

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1 A sampling procedure which does not afford any basis for estimating the probability that each item in the population has of being included in the sample is called ______________ a. Nonprobability Sampling b. In depth Sampling c. Out of context Sampling d. Probability Sampling

10:27 Bb M QUESTION 2 Consider a one-item survey as follows: Using a scale of 1 – 5 in which 1 = Not as well as I hoped, 2 = Pretty well, 3 = Well, 4 = Very well, and 5 = Crushing it, please indicate how well you are doing so far in your MBA 503 course. 1[] 2[] What type of data does this survey generate? Choose all that apply. 3[] 4[] 5[ ] O Continuous O Ratio Time series O Exponential O Binomial O Interval O Biased O Intersection Union O Hypergeometric O Ordinal O None of the above QUESTION 3 If you have a data set of n items, the data are continuous variables, the data set is unimodal, and the data set is too skewed to use the normal distribution, which probability distribution should you use to calculate probabilities? O Discrete uniform distribution Binomial distribution O Poisson distribution Hypergeometric distribution O Geometric distribution O Uniform continuous distribution O Standard normal distribution O Exponential distribution O Triangular distribution O None of the above…

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Q1: Identify the sampling technique used in the above scenarios.                                     B puts students' names in a hat and then selects his sample by picking 5 names, from his hat. B wants to check the airport security and for that he choose the first 50people to pass through a checkpoint. B wants to check the food quality of the products and for that he selects every 10thitems as her sample. B want to analyze the job satisfaction level among employees. He divided employees on the basis of “managers” and “non-managerial employees” and then randomly select 10 persons from each group. B want to study on gambling addiction and realized that it is difficult to get in contact with gambling addictive. He had however been in contact with one individual gambler in the initial phase of the study. When he interviewed him he asked if he had knowledge of other gamblers. The gambler gave references for two persons. When these two persons were interviewed, one gambler give reference…

Descriptive Statistics Analysis Results Current Battery.                          Proposed Battery Mean 598.7             Mean 697 Standard error 7.816009212.     Standard error 3.431876714 Median 602.                          Median 700 Mode 620.                                  Mode 710 Standard deviation 24.71639132.    Standard deviation 10.85254706 Sample variance 610.9        Sample variance 117.7777778 Range 86.                      Range 31 Minimum 534.                 Minimum 679 Maximum 620.                   Maximum 710 Sum 5,987                               Sum 6,970 Count 10 g.                            Count 10 *Battery time between charges shown in minutes Create a 1 slide infograph

1- Explain the facts regarding the data, including number of variables and datapoints.   #of variables       # of observations     2- Complete the table as follows, List the variables features including, names, variable, level, etc.    Variable Variable Type Variable Level     Age Numeric Ratio     Gender Categorical        Sales_Rep         Business         Years         College         Personality         Certificates         Feedback         Salary         NPS       Part 3 is shown on the photo

In using a statistical formula to calculate sample size, information that is typically needed to do the calculation include the following, except a.​desired level of confidence b.​allowable margin of error c.​response rate d.​variability of population characteristic being studied e.​all of the above belong

iS Management Fall20 Random variation is also known as common cause variation. Select one: a. FALSE O b. TRUE

a. Complete the ANOVA table. (Round the MS- and F-values to 4 decimal places.) SOURCE Regression 100 Error Total 30 630 b. How large was the sample? n= c. Determine the standard error of estimate. (Round the final answer to 4 decimal places.) d. Determine the coefficient of determination. (Round the final answer to 2 decimal places.)

In each of the following situations, a random sample must be obtained. Determine whether a cluster, stratified, or systematic random sampling would be appropriate.Explain in brief detail how the sampling is to be conducted. Do not discuss expected results or conclusions. a. A large convenience store chain wishes to determine its customers’ level of satisfaction with regard to their service. b. A nationwide survey on charter change is to be conducted. (Note: there are seventeen regions in the Philippines.) c. An educational researcher wants to compare the difference in career goals between male and female students of Maryheights College having 10,000 students.

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Topic: “What are some causes of rising food prices and the challenges faced by rural farmers in Mt. Royal, Carriacou.” Based on the topic above complete the questions below. What is the best way to collect the data? What are the best sampling methods that is intended to use for the data collection?  Are you using interviews?  If so how many interviews will be conducted?