7. It is helpful to use a ratio sampling when: a) The population is widely dispersed geographically b) You have limited time and money available for travelling c) You want to use a ratio sampling, in order to generalize the re d) All of the above

Q: A single sampling plan with lot size, N= 10,000 is preferred with a consumer's risk of 0.10 of…

A: Given: Lot size = 10,000 Consumer's risk = 0.10 Producer's risk = 0.05

Q: You are interested in knowing the proportion of Stormtroopers who are true clones. How many…

A: We have given that  Margin of error =E=2%=0.02 90% confidence.

Q: In the Kruskal–Wallis test, how should you deal with tied ranks?

A: Assumptions of Kruskal – Wallis test:   The conditions for performing the Kruskal-Wallis test to…

Q: uppose you take random samples from the following groups: freshmen, sophomores, juniors, and…

A: Stratified Random Sampling: The population is divided into subgroups then some members are chosen…

Q: Discuss the method of drawing a systematic sample of size 4 when N=24

A: Given - Pop. size = N = 24 Sample size = n = 4

Q: The state of Ohio conducted COVID19 tests on 68,811 people, and 8,533 tested positive. What is…

A: We can find the sample proportion as below

Q: d) If the class consists of 15 males and 15 females, assign the males the numbers from 1 to 15 and…

A: A simple random sampling means randomly selecting a sample from a population where each sample has…

Q: Develop an OC curve for a sampling plan in whicha sample of n 10 items is drawn from lots of N 1000.…

A: Here lot size is N=1000 and sample size is n=10. The lot is accepted if d≤1, where d follows…

Q: A sampling plan is desired to have a producer's risk of 5% and a consumer's risk of 10% at AQL=2.3 %…

A:

Q: 5. The sampling units and elementary units are always the same. MUKHANG TAMA SEEMS WRONG

A: We have the following statement.  The sampling unit and elementary unit are always the same.

Q: Is selecting one professor to be a member of the University Senate and then selecting one professor…

A: Here we have to identify whether the sampling is sampling with replacement or sampling without…

Q: 4. Draw the primary and supplementary OC curves for a double-sampling plan with ni = 60, ci = 3, n2…

A:

Q: A hypothetical population of N= 3000 is divided into four strata, their sizes of population are…

A: Given the sizes of four strata of a hypothetical population of N= 3000 as  Strata I II III IV…

Q: 1) Decide whether these sampling methods produce a simple random sample of students from a class of…

A: The process of taking out a sample from the population is called sampling. There are different…

Q: A poling organization contacts 1138 teenagers who are 13 to 17 years of age and live in the United…

A:

Q: Assume that there are only two age groups ("young" and "old"). Among Argentine immigrants in the US,…

A:

Q: Distinguish carefully between stratified sampling, cluster sampling and quota sampling, stating the…

A: Stratified sampling:   In the stratified sampling, the units in the population are divided into…

Q: Material is analyzed for weight in grams from three vendors-A, B, C- by three different inspectors…

A: Given:

Q: 4) 57% of kids can't wait for spring break. How many kids on average would we need to survey to find…

A: Geometric Distribution: Let us assume there is a sequence of trials, each having two outcomes, say…

Q: 1. Provide a definition for the certainty equivalent level of consumption for the simple lottery…

A: a. The certainty equivalent of a lottery is the amount of money you would have to be given with the…

Q: Consider a geographic area divided into four regions, north, south, east, and west. The following…

A:

Q: A TV news reporter says that a proposed constitutional amendment is likely to win approval in the…

A: Part b: Given: Sample size, n = 425                        Sample proportion, p^ = 0.52…

Q: Are there sources of bias in this situation?

A:

Q: In an independent measures design, what test may we use to discover differences between three or…

A: Friedman's test is the answer. In an independent measures design, Friedman's test is used to…

Q: Suppose that 60% of all students currently enrolled at all California Community College campuses…

A: Given: p=60%=0.60n=1000

Q: 5How to choose a cluster ? Under ; 1) simple random sampling scheme. 2) stratified random…

A:

Q: ppose that 97% of Monarch butterflies migrate to Mexico in winter. What is the smallest sample size…

A: Given data, 97% of Monarch butterflies migrate to Mexico in winter p=97%=0.97 What is the smallest…

Q: What sample size is necessary to get at least one object from each of 10 equal-sized groups.

A: There are 10 equal sized groups. If we select a random sample of size "n" from all the groups, then…

Q: 4. A private opinion poll is conducted for a politician to determine what proportion of the…

A:

Q: In research, it is not practical to include all members of a population. Is this true or false

A: Given statement: In research, it is not practical to include all members of a population.

Q: A sampling plan is desired to have a producer's risk of 5% and a consumer's risk of 10% at AQL~2.3 %…

A: Answer :

Q: If the subjects are homogeneous (uniform) and the subjects are in natural order in the population to…

A: The subjects are homogeneous and they are in natural order in the population to be researched. In…

Q: 24. Out of 3,000 unskilled workers of a factory, 2000 and out of 1200 skilled workers, 300 come from…

A: introduction - Method of proportion p'=xn where ,  x= Number of successes  n=sample size  p' =sample…

Q: 2. The subjects of your study are the education students in public universities that offers Free…

A: Random Sampling : sample taken randomly from population.  Systematic sampling : sample chosen from…

Q: Are there outliers? And I don't know what the most appropriate box is about

A: Outliers :  Some observations within a set of data may fall outside the general scope of the other…

Q: 16. Explain the sampling method which involves selection of a block(s) of contiguous items from…

A: To discuss Block sampling method

Q: What are the following terms mean: Instantaneous Sampling, Sampling and Flat-Top Sampling?

A:

Q: (2) If 1-in-10 systematic sample is to be chosen, what is the prob. that the first 3 families of…

A: Given information: 1 in 10 systematic sample is to be chosen.

Q: bias occurs when eneral population.

A: Sampling bias occurs when a sample statistic does not accurately reflect the true value of the…

Q: A researcher wants to study the academic perfomance of public high schoolers in a certain region.…

A: Disclaimer: Since you have asked multiple questions, we will solve the first question for you. If…

Q: The population size is always considered in any scientific investigation. If the population is too…

A: Importance of sample size in research: A sample should be representative of the target population.…

Q: 9. If a population is concentrated on the elderly and has very little number of children, then the…

A: the given statement is, If a population is concentrated on the elderly and has very little number of…

Q: Determine if the following situations use random or nonrandom sampling. Then, identify what type of…

A: Probability sampling: In the probability sampling each unit of the populations has the equal chance…

Q: In what is specific type of a sampling technique every 40th member of the population may…

A: A sample is a part of the population. The process of taking samples from the Population is called…

Q: The method of selecting a desirable portion from a population which describes the characteristics of…

A: Sampling: The population is estimated by using the technique of Sampling. A sample is selected from…

Q: Construct and interpret a 95% confidence interval for the proportion (p) of employees who are…

A: here given,   n = 200 sample mean of no of hour employee spend reading and writing work-related…

Q: Discuss the four different sampling methods, and for each method, explain why we might use it.

A: Here we need to discuss four different types of sampling methods with their uses.

Q: Suppose you are hired to design how to implement a survey to try to predict who wi win the race for…

A: Introduction - Sampling - It is a process used in statistical analysis in which a predetermined…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.