How large must the sample size be in order to to estimate a true proportion to within one percentage point MARGIN OF ERROR with 90 percent confidence? NONE OF THE OTHERS 6765 6766 16589

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: Use Slovin's Formula to determine sample size: 1. Given: N = 1000 ; 2. Given: N = 2000; margin of…

A: Given: 1. N=1000, Margin of error, e=0.01 2.N=2000, Margin of error, e=0.05

Q: A large airline company called Absolute Airways monitors customer satisfaction by asking customers…

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Q: c) Find the sample size necessary for a 95% confidence level with maximal margin of error E = 1.10…

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Q: R2/ A sample was taken from normal distribulion N(M, 25) . whatis the sample size to get a length…

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Q: Sketch the sampling distribution and show the area corresponding to the P-value. a b C -4 -2 4 -4 -2…

A: As per instruction , solving part d and e only The provided sample mean is Xˉ=18.6\bar X = 18.6 and…

Q: Two samples, each with n= 16 scores, produce an estimated standard error of 4 points and a t…

A: t statistic = 2 Standard error = 4

Q: It is known that 55% of customers who shop more than 2000 TL in a market shop in installments.…

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Q: Consider a sampling distribution with p=.14 and samples of size n=5000 Using the appropriate​…

A: Solution: From the given information, p=0.14 and n=5000.

Q: For a sample of n=36 scores, what is the value of the population standard deviation (o) necessary to…

A: a) Given,n=36σm=12σ=?σm=σn12=σ36σ=72

Q: A statistical research yields to the sample proportion of a certain feature in a certain community…

A: It is given that  Proportion, p = 0.56 Margin of error, ME = 0.05 Confidence interval = 90%

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: A store manager wants to estimate the proportion of customers who spend money in this store. How…

A: Given data: margin of error = 0.075 80%  = confidence level To find: How many customers are…

Q: Given the date below, determine the sample size of each of the group with a margin of error of 5%…

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Q: Assume simple random sampling. Calculate the confidence interval for the population proportion, P,…

A: Given : a. N = 1058 n = 160 x = 40 b. N = 854 n = 81 x = 50

Q: Samples of size n = 9 are selected from a normal population with µ = 80 and with σ = 18. What is the…

A: Here, the known values are  n = 9, µ = 80 and σ = 18

Q: d. What is the probability that the sampling error made in estimating the population mean salary of…

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Q: 11. Determine the sample size with a 90% confidence in estimating the population mean within a…

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Q: d. What is the mean of the sampling distribution of the sample mean (u)? [Use u= Hg] e. What is the…

A: If the population is normally distributed or the sample size is more than 30, then the sampling…

Q: ( 63. 108 66.892 3. Using the information given, what is the smallest sample size necessary to…

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

A: The number of classes is given by Sturge's formula n=1+3.322log(N)=1+3.322*log(100)=7.644≈8 Interval…

Q: 5) Consider a confidence level of 87%, let E = 0.02 and p = 0.42. Find the sample size n. %3D

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Q: o satisfy the desired margin of error, a sample size no smaller than is needed.

A: Given that Margin of error, E = 0.03 Confidence level is 95%, then the critical value of Z is 1.96…

Q: Use the given sample to construct a 95% conf estimate the population standard deviation o Bample…

A: s2= 72=49 The critical values for \alpha = 0.05α=0.05 and df = 19df=19 degrees of freedom are…

Q: Company Z is interested to estimate the proportion of employees favouring a new offi pranch in the…

A: Solution

Q: Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E.…

A: Solution: Given information: n= 220 Sample size  x= 110 successes  p^=xn=110220= 0.5 Sample…

Q: b) What is the minimum sample size needed to estimate the true proportion of adults who watch…

A: Given: Confidence interval =99% Level of significance, α=0.01 Standard error, e = 0.04 p = 0.5 from…

Q: 6. Calculate the sample size needed in order to estimate the true proportion of defective in a large…

A: Confidence interval are constructed by using z distribution.

Q: Sketch the sampling distribution and show the area corresponding to the P-value. a -2 O-4 C d (d)…

A: Given, n=46 Let A:  Cost of living index for utilities Let B: Cost of living index for…

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

A: We find the number of intervals using the Sturge's formula n=1+3.322log(n)=1+3.322*log(100)=7.644≈8…

Q: Consider an x distribution with standard deviation o = 36. (For each answer, enter an exact number.)…

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Q: A statistical research yields to the sample proportion of a certain feature in a certain community…

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Q: for a normal population mean, if a sample of size 25, sample mean= 7.9 and SD= 4.9. Then The 95%…

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Q: What is the standard error of means for a sigma value of 100 and a sample size of 9. O 1.111 O 3.333…

A: Given, σ = 100 n = 9

Q: Toasted O's are sold in boxes that have an advertised mean weight of 16 ounce random sampling is…

A: Toasted O’s are sold in boxes that have an advertised mean weight of 16 ounces.

Q: When n=64 whales are randomy selected, what would be the standard error of the sampling…

A: Given,S2=16 MTx¯=18 MTn=64

Q: 1. Find the minimum sample size (n) you use to so that p is within a margin of error of 3% with a…

A: Sample size = sample size is the number of completed responses your survey receives or (randomly…

Q: A statistical research yields to the sample proportion of a certain feature in a certain community…

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Q: A sampling distribution (dotplot) for the mean quiz score for a sample n = 30 of STAT101 students is…

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Q: In the context of a one-sample t-test, what is the estimated standard error, sm, for a sample size…

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Q: In general, increasing the sample size (for example, from n = 4 to n = 50) will  ---??Select??---…

A: We know that- Type I error is- Rejecting the true null hypothesis. By increasing the sample size,…

Q: With 99% confidence, maximum error is 0.06 and the proportion p = 0.5. Find the sample size. a. 463…

A: For given data Find Sample size(n ) = ?

Q: An engineer believes that 4% of a certain manufactured product are manufactured with a flaw. If one…

A: Given: Hypothesized proportion of flawed objects (p) = 4% = 0.04 Sample size (n) =  36

Q: Which of the statements below is true:a. Larger sample sizes produce greater sampling errorb. Larger…

A: Since we know the formula for Margin of error is- From this formula we can see that margin of error…

Q: o estimate the proportion of teen traffic deaths in Texas last year that was caused by speeding,…

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Q: Assume that you plan to use a significance level of a = 0.05 to test the claim that P1= P2, Use the…

A: The sample proportions are

Q: If one sample has n = 4 and SS = 90 and a second sample has n = 8 and SS = 150, then the estimated…

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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.