ith the given data, consider a sample size of 15. How can you randomly select the 15 from the population using systematic random sampling?

Q: hen creating a 99% CI based on data from one sample the size of n=31, which t value should be used?

A: Given: n=31 The degree of freedom=n-1=31-1=30 The level of significance (α)=0.01 We see inside the…

Q: What sample size would be required for the width of a99% CI to be at most .05 irrespective of the…

A: The confidence level is 99%. Therefore, α = 0.01 and α/2=0.005. The margin of error is 0.05 Since…

Q: '. By how much must the sample size n be increased if the width of the CI (7.5) is to be halveď? If…

A: The formula for calculating the sample size in terms of width of the confidence interval

Q: A local brewery wishes to ensure that an average of 12 ounces of beer is used to fill each bottle.…

A:

Q: The required sample size is (Round up to the nearest whole number as needed.) Does the sample size…

A: Sample mean is within 0.014 of the population mean, Margin of error=0.014 At 98% confidence…

Q: If the population mean is 132, the sample mean is 136, o 6.3, and N 18, what is z? How likely is it…

A: The provided information is,

Q: The degrees of freedom for the sample containing 10 measurements is v = 10. True False

A:

Q: In a random sample of size 58, 29 people say they generally get less than 8 hours of sleep a night.…

A: Solution: Let X be the number of people say they generally get less than 8 hours of sleep a night…

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: n. How large of a sample size is required?

A: here MOE  = 0.03 p =0.28 z critical for 95% confidence level = 1.96 s

Q: As the sample size increases, what happens to the p-value associated with a given sample mean?

A: In statistics, the sample size is the no of units present in a sample that is drawn from a…

Q: The appropriate interval width for a random sample of 100 observations that fall between 50 and 250…

A: Given, A random sample of 100 observations that fall between 50 and 250 is:  The formula for class…

Q: from the given parameters of the population and sample size. and o Determine p- H=69, 0 = 6, n= 38

A:

Q: When you are conducting the t test, the sample size must be greater than .30

A: We have to find the statement is true or false....

Q: A client of ABC consulting firm insists on a 99% reliability for the sample results that they…

A: Since, you have posted multiple questions, We have provided answer for 1st question. Please post the…

Q: Among the random and non-random sampling techniques that we have, which do you think is the most…

A: Random/Probability sampling is a technique in which each member of the population has an equal and…

Q: For a one sample t-test with sample size 58, the degrees of freedom is:

A: Here AS PER POLICY I SHOULD HAVE TO CALCULATE FIRST MAIN QUESTION EVEN THOUGH I HAVE CALCULATED 2…

Q: For a population with σ = 12, how large a sample is necessary to have a standard error that is:…

A: What the standard error gives in particular is an indication of the likely accuracy of the sample…

Q: If σ = 35, what sample size would you need to get the standard error to be at most 2.5? If the…

A:

Q: Suppose that you have a group of 1,000 city government employees and you want to survey them to find…

A: Given Information: Total Population = 1000 Margin of error = 0.05 Consider the proportion = 0.5 The…

Q: Historically, the proportion of car parks in a particular city that offer early discount fees is…

A: a. Consider that p is population proportion of car parks in a particular city that offer early…

Q: How large of a sample size is required?

A:

Q: The results of a study that used an independent samples t-test was t(28) = 2.14, p = .01. Based on…

A: t(28) means that degree of freedom  = 28 Now, degree of freedom for a t-test one sample case  = n-1.

Q: Suppose the average grade point average (GPA) for the undergraduate student population on our campus…

A: The population average grade point is µ = 3.10.

Q: Given a population of 5 and a sample size of 3, what is the tota possible random samples that can be…

A: Given:  Population size, N = 5  Sample size, n = 3  The total number of random samples that can be…

Q: Which of the following sample results yields a 95% CI for µ with the smallest width and why? (i) x =…

A:

Q: From a population of 1000 items, we need to take a sample of 100 items. If we use systematic random…

A:

Q: an independent-samples t test, you will usuall

A: the test statistic for independent-samples t test = μ1-μ2-0combined standard deviation

Q: The claim is that for a smartphone​ carrier's data speeds at​ airports, the mean is m=12.00 Mbps.…

A:

Q: The records of a light bulb manufacturer show that, when the manufacturing machinery is working…

A: GivenThe defective rate is 1%i.e.,p=0.01sample size(n)=4400

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: Pull sample with return? Pull sample without return with no arrangement? Pull sample without return…

A: Given: Population: A , B , C ,D  sample size =2

Q: A large collection of 1-digit numbers should have about 50% odd and about 50% even because are odd…

A: The digits are given by,  S = {9,1,5,4,7,0,3,9,2,7,9,2,3,0,9,1,0,5,8,9,2,2,1,0,7,0,4,3,9,0} Given…

Q: Which of the following sampling methods does not lead to the samples that can represent population?…

A: Solution Answer. 13) Convience sampling   Because the convenience sampling may not be a random…

Q: What is the target sample size for a population of 3,500 people with a standard value of 1.65 and a…

A: Solution-; Given: N=3500, Standard value (V)=1.65,sampleing error (Se)=0.10 We find the target…

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

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: Based upon the output provided, what is sample size?

A: Given information : Correlation Matrix for the variables Travel and Satisfaction is given.

Q: In a sample with M = 40 and s = 8, what is the z-score corresponding to X = 38? %3D

A: Solution: 7. From the given information, M=40 and s=8.

Q: estimate the population proportion p,what is the minimum sample size we need in order to achieve a…

A: Solution: From the given information, confidence level is 0.95, p=0.1 and E=0.01.

Q: By how many times does the sample size have to be increased to decrease the margin of error by a…

A: Formula for margin of error is ME = Zα/2 * σ / √n where Zα/2 = critical value

Q: P(-2.5 < t < 2.5) with a sample size of 15 ?

A: Given that  Sample size (n) = 15 Degrees of freedom (df) = (n-1) = 15-1 = 14   Here asked about…

Q: (c) If we want a margin of error of only + 1.0, what sample size is needed? Round your answer up to…

A: The following information is provided. consider the level of significance is 0.05. Also,

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

A: It is given that the population mean is 559, the standard deviation is 0.3 and the sample size is…

Q: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

A: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

Q: Aspen trees tend to be smaller in the highlands of the park because they are subject to strong…

A: Systematic Sampling will be used here.

Q: If s = 15 and the estimated standard error is 5, then the sample size must be equal to ______.

A: According to the provided information, s=15 SE = 5

Q: How would the sampling distribution of    change if I increase the sample size to 1,000 residents?

A: Here use concept of sampling distribution and central limit theorem