List all the 21 sample.

Q: In order to get patients opinion about the services provided to them by a hospital, a sample of 500…

A: A systematic type of sampling is the sampling in which every kth member is selected to gather a…

Q: A researcher decided to gather data from all 150 employees in a certain office instead of just…

A: A certain office has 150 employees. All of them are selected by a researcher to gather data from.

Q: A recent graduate chooses 4 continents to visit from the 7 in the world. What is the size of the…

A: A recent graduate chooses 4 continents to visit from the 7 in the world total=7 choose =4

Q: A political scientist surveys 28 of the current 101 representatives in a state's legislature. What…

A: A finite part of a population chosen for an experiment is called a sample, and the number of…

Q: What is the Population Variance for the following numbers: 63, 4, 7, 73, 75, 78, 19, 40, 18

A:

Q: Required: A statement of the number of engineers, employees and workers who make up this sample.

A: here given ,  A random sample of 30 is chosen from population of 130 professionals  there are 30…

Q: What is the degree of freedom if the sample size is 25.

A: It is given that Sample size n = 25 Note : Since you have asked multiple questions, we will solve…

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: Find the sample mean. Sample: 20, 13, 4, 8, 10

A:

Q: Determine the number of samples in A' N B, B', and A UB.

A: The given data can be described according to events A and B as   B B' Total A 22 8 30 A'…

Q: Identify the population and sample in this study.

A: The director of a nationwide car rental company chooses at random 500 people age 60 or older from…

Q: A political scientist surveys 26 of the current 157 representatives in a state's congress. What is…

A: A political scientist surveys 26 of the current 157 representatives in a state’s congress.

Q: find sample variance   41,45,48,49,52,53,55

A:

Q: Identify the population and sample. In a random sample of Salinas residents, 137 said they would…

A: Population: The population in a statistical study is the entire group of individuals about which we…

Q: Estimate the the sample variance

A: Given, n=6 α=1-0.80=0.20 The sample mean and than the sample  variance is obtained as-…

Q: The sample should include men and women.

A: Margin or error = 0.02 z-critical value at 0.05 = 1.96

Q: find variance for sample collected     10,15,18,19,0,21,21,25,30

A: xx2101001522518324193610021441214412562530900∑x=159∑x2=3417

Q: Think of 5 situations with equally likely events and find the sample space.

A: Events are said to be equally likely if each outcome has equal chance of being occur.

Q: Use the given sample data to find Q3 given: 49,52,52,52,74,67,55,55

A: The formula of 3rd quartile is,

Q: What is a random sample?

A: Here use definition of random sample

Q: Consider the sample data: 125, 115, 112, 127, 112, 105.

A: Data set: 125, 115, 112, 127, 112, 105

Q: List two ways to identify a simple random sample.

A: Definition: Simple random sampling is defined as a sampling technique where every item in the…

Q: find coefficient of variation for given sample.   45,78,42,1814,25,45,85,2,8,15,47,89,29,65

A:

Q: find sample coefficient of variation   5,6,8,8,9,11,15

A: Given data is5,6,8,8,9,11,15

Q: 2. A sample of

A:

Q: If you want to conduct a study to determine how much people exercise from a certain town, what would…

A: In this scenario, it is appropriate to call randomly selected cell phone numbers of people living in…

Q: find sample mean and sd   4.5,8.5,6.0,8.2,4.5,6.3,8.4,5.3,9.1,2.5,6.0,7.5

A: We need to find sample mean and sd 4.5,8.5,6.0,8.2,4.5,6.3,8.4,5.3,9.1,2.5,6.0,7.5

Q: A population consists of six values (12, 14, 16, 18, 20, and 22).   How many possible samples can…

A: A population consists of six values (12, 14, 16, 18, 20, and 22).

Q: A scientist surveys 2676 of the current 3308 patients taking a specific medication. What is the size…

A:

Q: A political scientist surveys 33 of the current 134 representatives in a state's legislature. What…

A: Sample: A sample is a proper subset of a population to study the characteristics of a population.…

Q: find sample coefficient of variation   20.2,20.6,20.5,21.8,21.6,21.0,21.4,20.5,20.8,20.9,21.0

A:

Q: Find the interval containing the middle-most 34% of sample means:

A: Let X denote the distribution of values and x¯ be the sample means of the samples of size n=15.…

Q: A coach is interested in how many slam dunks the average college seniors at his university can do.…

A: a)  Sample :- Ten volunteers from the senior class of the university

Q: find skewness for given sample 4,9,8,11,15,14,17,13

A:

Q: Describe the sampling distribution for the sample means

A: Given, n=100 μ=55 σ=20

Q: What is the Sample Variance for the following numbers: 79, 77, 50, 49, 35

A:

Q: find sample coefficient of variation.     4,5,8,9,4,6,3,8,7,5,6

A:

Q: List all samples of size 3  2, 5, 6, 8, 9

A: Given information: Need to list all the samples of size 3. The observations are: 2,5,6,8,9. The…

Q: A political scientist surveys 26 of the current 87 representatives in a state's legislature. What…

A: Size of the population is total number of individuals under study. Size of the sample is number of…

Q: Explain random numbers?

A: Introduction A no. in mathematics and statistics is an object which is used for counting, measuring…

Q: Identify which type of sampling is used. A sample consists of every 49th student from a group of 496…

A: Given that Sample consists of every 49th student from a group of 496 students. We know that  Sample…

Q: respondents out of these organizations. Identify the samples to be taken in each organization.

A:

Q: Billy has a bag of 30 marbles. He must choose only 6 marbles to bring for show and tell. What is the…

A: Given: The bag contains 30 marbles. He will choose only 6 marbles to bring for show and tell.

Q: - Determine the sample and

A: here use basic of population and sample

Q: Find Q1, Q2, and Q3 for the following sample of 14 numbers 1, 2, 4, 6, 7, 9, 11.5, 12.9, 13, 14,…

A:

Q: Explain in detail RANDOM ASSIGNMENT OF SUBJECTS.

A: Random assignment: A random assignment is a technique for placing participants to different groups…

Q: find sample variance of data   45,85,63,21,54,25,85,65

A:

Q: What is the sample for the study

A: The sample is the subset of the population.

Q: A political scientist surveys 27 of the current 152 representatives in a state's legislature. What…

A:

Q: Define Sample?

A: Sample is defined as small set of data that is chosen from large population by using predefined…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.