Extra Small  390  Small   470  Medium 520    Large 680  Extra Large  440 a) It was discovered that the sizing of some shirts was labelled incorrectly. (i) Give two reasons why it would be necessary to examine a sample of the shirts produced rather than examine the entire weekly production.  (ii) State two differences between a cluster sample and a stratified random sample in this situation.  (iii) Using the stratified random sampling technique, calculate the number of medium shirts that will be selected if we require a sample of 375 shirts.

Q: 6. A radio station asks its listeners to call in their opinion regarding the use of American fore…

A: 6. In voluntary response sampling, the individuals have the right to be a part of the survey or not…

Q: The president of Doerman Distributors, Inc., believes that 30% of the firm’s orders comefrom…

A:

Q: A rowing team consists of four rowers who weigh 18, 24, and 36 pounds. Find all possible random…

A:

Q: Describe the procedures for obtaining a random sample. step by step

A:

Q: A manufacture of Mobile wants to estimate the average repair cost per month for the mobile he has…

A: The data given is as follows m y 5 20 4 12 6 12 8 21 6 15 Assumed confidence level…

Q: A rowing team consists of four rowers who weigh 152, 156, 160, and 164 pounds. Find all possible…

A: Weigh of four rowers in a rowing team is population . So the given population is :…

Q: Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain.…

A: Given Information: Every tenth person entering a cafeteria is asked to choose his or her favourite…

Q: The owner of a large equipment rental company wants to make a rather quick estimate of the average…

A: The formula for 99% confidence interval to estimate the average number of days that a ditch-digger…

Q: sampling

A: Here sampling is without replacement so once a element drawn then not returned

Q: What method did Dr. Freud use to select his sample

A: Stratified sampling is used when the population is heterogeneous and is divided into number of…

Q: Explain the three methods of selecting a simple random sample

A: When the sample is selected randomly and every element of the population has an equal chance of…

Q: 1. Discuss the theoretical framework of simple random sampling. 2.Discuss the theoretical framework…

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

Q: As of July 8, 2020, the national average price for a gallon of regular unleaded gasoline was $2.18.…

A:

Q: What is the formula to be used to determine the total possible random samples?

A: Let the population size be N Sample size be n

Q: In a large high school, 18% of sophomores and 67% of seniors have part-time jobs. Suppose random…

A: From the given information, n1=32, p1=0.18, n2=31 and p2=0.67.

Q: Sigmund Freud is interested in studying the dreams of adolescent boys (aged 10-19) to further his…

A: Simple random sample: A procedure for selecting a sample of size n out of a finite population of…

Q: Classify the following as discrete or continuous random variable 1. Speed of tricycle 2. The…

A: A random variable, which is a function, can be expressed in terms of numerical value.

Q: When resampling data from two independent​ samples, what is the fundamental difference between…

A: Resampling: Resampling is a technique for improving the reliability and defining the uncertainty of…

Q: When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States…

A: Simple random sampling is a type of sampling where some units are randomly selected from a…

Q: A teacher at a school obtains a sample of students by selecting a random sample of 20 students from…

A:

Q: 18. The director of operations for an oil company wants to measure employee satisfaction at his…

A: Option A is correct.

Q: Sigmund Freud is interested in studying the dreams of adolescent boys (aged 10-19) to further his…

A: A Simple Random Sample is a subset of a statistical population in which each member of the subset…

Q: The following table shows the number of shirts by sizes that are manufactured in a factory on a…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Picture posted

A: Simple random sampling:If a sample of n subjects is selected then every unit in the population has…

Q: At a large corporation, 6,000 employees from department A and 4,000 employees from department B are…

A: Concept of sampling distribution of sample proportion: Let a particular characteristic of a…

Q: The following table shows the number of shirts by sizes that are manufactured in a factory on a…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What are thw two requirements for a random sample?

A: In this case, we need to write the two requirements for the random sample.

Q: The following table shows the number of shirts by sizes that are manufactured in a factory on a…

A: Given information: Size Count Extra small 390 Small 470 Medium 520 Large 680 Extra…

Q: 36. With simple random sampling, is X an unbiased estimate of u2 If not, what is the bias?

A: Check whether sample mean square is an unbiased estimator of population mean square or not.Unbiased…

Q: Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain.…

A: Solution: Stratified random sampling:  Stratified random sampling is a type of probability or random…

Q: At a large corporation, 6,000 employees from department A and 4,000 employees from department B are…

A: Concept of sampling distribution of sample proportion: Let a particular characteristic of a…

Q: The following table shows the number of shirts by sizes that are manufactured in a factory on a…

A: The number of particular shirt sizes manufactured by the factory. Extra-small Small Medium Large…

Q: A rowing team consists of three rowers who weigh 18, 24, and 36 pounds. Find all possible random…

A: The all possible random samples of size 3 from a population of size 3 is 33 = 27 The given weights…

Q: a) It was discovered that the sizing of some shirts was labelled incorrectly. (i) State two…

A: In cluster sampling, population is divided into groups called clusters and entire cluster is…

Q: Extra Small  390  Small   470  Medium 520    Large 680  Extra Large 440 it was discovered that the…

A: i) It is asked to give two reasons why it would be necessary to examine a sample of the shirts…

Q: The following table shows the number of shirts by sizes that are manufactured in a factory on a…

A: The process of extracting sample from the population is called as sampling. There are few methods of…

Q: What sampling method is used when a statistic student did a research on the time spend by grade11…

A: Simple random sampling: A procedure for selecting a sample of size n out of a finite population of…

Q: five state officials are listed. 1 Governor (G) 2 Lietuenant Governor (L) 3 Secretary of State…

A: Any process which yields well-defined results or statistical data is called an experiment. A result…

Q: 2. Prove that the simple random sampling without replacement is more efficient than simple random…

A: Hi! Thank you for the question. AS per the honor code, we are allowed to answer only one question at…

Q: Mars, Inc. states that 16% of all milk chocolate M&M’S® produced are green. A group of students took…

A: Sample survey

Q: A biologist wishes to study the effect of the pollinating number of insects on yields of dates on a…

A: In Systematic Sampling we take samples from the population with a systematic manner and with an…

Q: C. At least 7 of these cardholders over age 50 will dispute a charge during the coming year. d. The…

A: Given that the records shows 30% of the cardholders dispute one or more charges in their statements.…

Q: The following shows the number of shirts by sizes that are manufactured in a factory on a particular…

A: Note : Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the…

Q: Assume that the probability of finding a proportion of 0.363 defectives in a good lot that contains…

A: Given :Lot contains =100,000Defective lot =0.363Rejecting a good lot costs =206.5Accepting a bad lot…

Q: Regarding the pooled and nonpooled t-procedures, a. what is the difference in assumptions between…

A: a.Identify the difference between the assumptions of pooled t-test and nonpooled t-test.The…

Q: If the probability of committing a Type I error for a given test is decreased, then for a fixed…

A: As probability of type I error decreases, probability of type I error increases.

Q: When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States…

A: In simple random sampling, the sample is selected from whole population without any sub grouping and…

Q: When a researcher uses random sampling in their study, they are most likely concerned with: When a…

A: Random sampling is the simplest probability sampling.

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.