From a population of 1000 items, we need to take a sample of 100 items. If we use systematic random sampling, the sampling interval would be  a 10 b 100 c 50 d Cannot be determined

Q: Question 3. A market researcher obtains a sample of 50 people by standing outside a store and asking…

A: Here we want to know the sampling method to be used for the market research.

Q: When solving problems where you need the sampling distribution of r, what is the reason for…

A: The basic reason for transforming r to z which makes the “r” normally distributed with a known…

Q: If we are dealing with data obtained about the sample means, then we will use the formula z =…

A: Solution

Q: Given a binomial random variable x and p = 0.2, find the mean for a sample size of 15.

A: Given data, p=0.2 n=15 What is the mean?

Q: In a large school district, all teachers from two buildings are interviewed to determine whether…

A:

Q: Two researchers adopted different sampling techniques while investigating the same group of students…

A: Solution is given:

Q: A simple random sample of size n=36 is obtained from a population with μ=89 and σ=24. ​(a) Describe…

A: Given Information: Sample size n=36 Mean μ=89 Standard deviation σ=24

Q: Suppose a simple random sample of size n= 150 is obtained from a population whose size is N= 10,000…

A:

Q: Suppose a simple random sample of size n= 64 is obtained from a population that is skewed right with…

A: Given, Sample size =64  mean =82 Standard deviation = 32 b)…

Q: Suppose a simple random sample of size n= 49 is obtained from a population that is skewed right with…

A:

Q: The sampling variability of the sample means becomes smaller as the sample size n gets larger. True…

A: Here we need to determine whether the given statement is true or false.

Q: In simple random sampling, it is also true that each member of the population is equally likely to…

A: Simple random sampling: Simple random sampling is a procedure of collecting samples using the…

Q: Since the sample size is always smaller than the size of the population, the sample mean O A. can be…

A: Correct answer is (A)

Q: 2.Using stratified random sampling, if 200 will be taken as sample, how many representatives from…

A: 2)  Number of representatives to be selected for sample = 200 Total population…

Q: ith the given data, consider a sample size of 15. How can you randomly select the 15 from the…

A: In the method of systematic sampling, choosing a Kth sample from the population yields a systematic…

Q: In each of the following situations, the sampling frame does not match the population, resulting in…

A: (a). Identify the population members that might have been omitted in the collection of sample:…

Q: Suppose a simple random sample of size n= 200 is obtained from a population whose size is N= 20,000…

A: Solution

Q: Two researchers adopted different sampling techniques while investigating the same group of students…

A:

Q: As a Physical Education teacher of ADU, Sir Loui wants to compute for the Body Mass Index of few…

A: Given information: As a start, the following are the height of five students in meters. Jaeight-…

Q: Suppose we select an simple random sample of size n = 100 from a large population having proportion…

A: Here we want to find correct p which follow approximately Normal distribution.

Q: What is the P (t < -0.3) with a sample size of 13.

A: The sample size is, n = 13 The degree of freedom is, df= n-1   =13-1   =12

Q: Suppose a simple random sample of size n=81 is obtained from a population with μ=76 and σ=18. ​(a)…

A:

Q: For any sample of size 90, the population mean, the mean of the sampling distribution for the…

A:

Q: The newspaper in the previous problem decides to increase the size of its random sample of citizens…

A: Given Data: Previous sample size=250 New sample size=500

Q: d. How would the sampling distribution of i change if the sample size n were doubled from 100 to…

A: how would the sampling distribution of x bar change if the sample size n were doubled from 100 to…

Q: Give one situation where each of the sampling methods is being applied. 1. Cluster Sampling 2.…

A: Sampling method involves: Prob. sampling Non-prob. sampling

Q: Suppose we are now interested in taking random samples of 800 US adults instead of 150 and…

A: As we know that, Sample proportion is given by, p= X/n Where n is sample size.

Q: Suppose a population distribution has a mean of 86.1 and a a random sample of 83 observations from…

A: Given that x=Sample mean=74.6 μ=Population mean=86.1 n=Random sample=83

Q: Suppose a simple random sample of size n= 50 is obtained from a population whose size is N= 30,000…

A:

Q: How many simple random samples of size 3 can be selected from a population of size 7? а. 35 b. 210…

A: Answer - How many simple random sample of size 3 can  be selected from a population of size 7 ?

Q: Suppose a simple random sample of size n= 150 is obtained from a population whose size is N= 25,000…

A:

Q: The symbol μx¯   represents the population mean of all possible sample means from samples of size n.…

A: Given that, The symbol µx̄ represents the population mean of all possible sample means from samples…

Q: As a Physical Education teacher of ADU, Sir Loui wants to compute for the Body Mass Index of few…

A: Given information: As a start, the following are the height of five students in meters. Jaeight-…

Q: Suppose you know the population mean and are interested in seeing how a sample average compares to…

A: The sampling  distribution for n=35 will have Smaller Standard Deviation because S.D of sampling…

Q: In a simple random sample size of 89, there were 40 individuals in the category of interest. It is…

A: Solution

Q: Give one situation where each of the sampling methods is being applied. 1. Lottery sampling 2.…

A:

Q: 1. True or False The sampling distribution of the mean will have the same mean as the original…

A: We have to find out given probabiity..

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: If a researcher uses random sampling, the sample will definitely be representative of the…

A: Solution: The given statement is “If a researcher uses random sampling, the sample will definitely…

Q: Suppose that we will take a random sample of size n from a population having mean µ and standard…

A:

Q: You randomly selected one sample of 40 citizens of your city to see if they wanted to increase taxes…

A: See the solution

Q: What is the P(t > -0.4) with a sample size of 13.

A:

Q: If s=16 and the estimated standard error is 2, then the sample size must equal to ___.

A: It is given that the sample standard deviation is 16 and standard error is 2.

Q: Suppose a simple random sample of size n= 125 is obtained from a population whose size is N= 30,000…

A: Given: n=125 N=30000 p=0.6

Q: If a population has a mean of 16.7, what is the mean of the sampling distribution?   A. less than…

A:

Q: In simple random sampling, it is also true that each member of the population is equally likely to…

A: a)Simple random sampling:Simple random sampling is the procedure of collecting samples using the…

Q: a sample of at least 10. (n=10)

A: The best way to ensure sample represent the population it came from accurately is to make sure that…

Q: c) If you take a sample of size 571 from the original population where p is 5%, can we say that the…

A: It is given that: Population size (N)=22000 population proportion (p)=0.05    c). It is given that…

Q: A simple random sample of size n=81is obtained from a population with μ=82 and σ=36. ​(a) Describe…

A: