If [1740, 1850] is a confidence interval for a population mean. Find the value of the point estimator of the population mean. Select one: O a. 1910 O b. 1660 O c. 1540 O d. 1795

Q: Given the mean of 62 and the standard deviation 8, find the z-score that corresponds to each of the…

A: Given:  Mean = mu = 62 Standard deviation = sigma = 8 X = 78

Q: d. ta and n = 8 for the 95% confidence interval for the mean. e. te and n= 21 for the 85% confidence…

A: Given that  d) Confidence level = 95% = 0.95 Sample size (n) = 8   We know that  Degrees of freedom…

Q: Find the value of ta/2 given a. n = 37 for the 85% confidence interval for the mean b. n = 15 for…

A: a)Here,α=1-85%=1-0.85=0.15 And,The degree of freedom=n-1=37-1=36   Then, from the…

Q: A confidence interval was found to be (2.4, 7.9). What was the point estimate? O A. 5.27 O B. 5.2 O…

A: Given confidence interval is (2.4 , 7.9)Upper limit =7.9Lower limit =2.4

Q: Find a 95% confidence interval for a mean, µ, where n = 324, x̄ = 2.7, s = .91, and se = .06.

A: Given: n = 324, x̄ = 2.7, s = .91, se = .06.

Q: In order to construct the 95% confidence interval, you choose which formula? O x ±1.645 × OT ±1.96 x…

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Q: If n = 330 and X = 264, construct a 95% confidence interval for the population proportion, p.

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Q: If Xbar=81​,S=20​,and n=36​,and assuming that the population is normally​ distributed, construct a…

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Q: The 95% confidence interval for the population mean is . 09.336 < u < 10. 664 09.342 <µ < 10. 658

A: Given data,n=100x=10σ=4Find 95% CI?

Q: If 1850, 1970 is a confidence interval for a population mean. Find the value of the point estimator…

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Q: Find the standard error to estimate the population mean for each of the following. a. n = 17; 95%…

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Q: If X = 66, S = 16, and n = 64, and assuming that the population is normally distributed, construct a…

A: Given data: Sample mean = 66 Sample standard deviation = 16 Sample size = 64 Confidence level  = 95%…

Q: Of the following general derivations, choose the formula that you need for computing a confidence…

A: Confidence interval = ??

Q: Construct the confidence interval for the population mean y. C= 0.90, x=16.6, o= 10.0, and n= 80

A: Here, C=0.90, x=16.6, σ=10.0, and n=80.

Q: In which of the following situations we can NOT construct a confidence interval for the population…

A: We know that the minimum sample size required to assume normal approximation is 30.

Q: A 95% confidence interval for mean was found to be (18.54, 21.22). What was the margin of error? O…

A: Given: confidence interval ( 18.54 , 21.22 ) Need to find margin of error(ME) .

Q: find out the confidence interval for population proportion  for given data  [ 4 decimal places ]…

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Q: Maria has data from a random sample of 16 subjects and is constructing a 95% confidence interval for…

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Q: If X=99​, S=7​, and n=64​, and assuming that the population is normally​ distributed, construct a…

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Q: FIND t a n = 15 for the 98% confidence interval for the mean.

A: Provided information that, n=15 Alpha (α)=1-0.98=0.02 α/2=0.01

Q: If X = 147, o = 22, and n= 36, construct a 99% confidence interval estimate of the population mean,…

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Q: Which of the following indicates a confidence interval? a. 0.95              b.99%               c.…

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Q: Use the given degree of confidence and sample data to construct a confidence interval for the…

A: It is given that n=195 and x=162. The sample proportion is 162/195 = 0.8308 The sample size is 195…

Q: If X=135, a=29, and n = 34, construct a 99% confidence interval estimate of the population mean, μ.…

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Q: If (220 ,230) is a confidence interval for the population mean p, then the point estimator in this…

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Q: Construct the confidence interval for the population mean p. c= 0.95, x 8.9, o=0.7, and n= 46

A: As the population standard deviation is known, we will use z distribution. The value of z at 95%…

Q: Find a Confidence interval for the true Population Proportions if n = 30,        x = 75, and the…

A: From the given information, X=75 and n=30.

Q: If X bar = 75, S = 24, and n =36, and assuming that the population is normally distributed,…

A: Given X bar = 75,  S = 24,  and n =36,

Q: Given that the mean μ=20 and the standard deviation σ=4, find P (15 < x < 25)

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Q: is: n=217, x 26.5 hg, s= 6.1 hg. Construct a confidence interval estimate of the mean. Use a 99%…

A: Given that  Sample size(n) = 217 sample mean (x¯) = 26.5 Sample standard deviation (s) = 6.1…

Q: If you want to make a confidence interval for the mean with the TI-84, which of the following…

A: For the given statement Select the correct choice ?

Q: f X=142​, σ=20​, and n=36​,construct a 99​% confidence interval estimate of the population​ mean, μ

A: Given that  sample mean (X) = 142 Population standard deviation (σ) =20​  Sample size (n) =36…

Q: If a confidence interval for the mean is (38≤μ≤89)(38≤μ≤89), a) What is the point estimate?    b)…

A: Given,   Lower bound = 38​ Upper bound = 89

Q: If (50, 70) is a 99% confidence interval for the population mean u, then the point estimate for u is…

A: Given,99% confidence interval is (50 , 70)

Q: ch. The "confidence interval" lying between +1 SEM and -1 SEM would give us a “confidence level"…

A: The 68-95-99.7% (Empirical) Rule: For a normal distribution, the empirical rule (68-95-99.7% Rule)…

Q: "he 95% confidence interval for the population mean is 09.342 < µ< 10. 658 9. 336 < µ< 10. 664 09.…

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Q: The mean and the standard deviation of a population are 11795 and 14054 respectively. If n = 50,…

A: According to the given information in this question We need to find 95% confidence interval

Q: Before working with percentages in confidence intervals and hypothesis tests for p, change them to…

A: Confidence or testing formula always given in proportion form.

Q: If X-bar = 125, σ = 24, and n = 36, construct a 99% confidence interval estimate for the population…

A: Given: X-bar = 125, σ = 24, n = 36.

Q: If [1740, 1850] is a confidence interval for a population mean. Find the margin of error. Select…

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Q: Use the given degree of confidence and sample data to construct a confidence interval for the…

A: Given data, n=195 x=126 p=x/n=126/195=0.646   z-value at 95% confidence is Zc=1.96

Q: Example : In the group of 345 children surveyed, the sample mean was 11.3 and the standard deviation…

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Q: Which of the following would result in the widest confidence interval? a) A sample size of 100 with…

A: Form the above question Which of the following would result in the widest confidence interval The…

Q: create a 90% confidence interval for the following data:  x = 25 n = 100

A: Here we need to construct a 90% confidence interval.

Q: for the population mean p? hg<u< hg (Round to one decimal place as needed.) Are the results between…

A: As the population standard deviation is not known, w will use t-distribution. df=n-1=181−1=180 α=0.1…

Q: onstruct the confidence interval for the population mean p. c= 0.90, x=7.1, o = 0.5, and n= 45

A: Given data,n=45x=7.1σ=0.5c=0.90Construct a 90% CI?

Q: If a 95% Confidence for the Population Proportion is (0.56, 0.78), fınd its Margin of Error.

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Q: C. FIND t a n = 15 for the 98% confidence interval for the mean.

A: Given problem is :

Q: e. FIND t a n= 20 for the 95% confidence interval for the mean.

A: Given: Confidence level = 95%c=95%=0.95n=20

Q: In terms of z scores, a 99% confidence interval consists of which of the following ranges? 1. ±1 z…

A: We know, If Z~N(0,1) Then, P(a &lt; Z &lt; b) = P( Z &lt; b ) - P( Z &lt; a) Also,  P( - a &lt; Z…