Find the confidence level and a for an 86% confidence interval. What is the confidence level? (Type an integer or a decimal.) Determine the value of a. (Type an integer or a decimal.)

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A drug is…

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Q: The value of a for a 98% confidence interval would be ______. 1. 0.2 2. 0.02…

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Q: Find the confidence level and α for an 86​% confidence interval.   What is the confidence​ level?…

A: According to the provided information, α =1 - 0.86 = 0.14

Q: 25.  At a local college, 200 students were asked if they attended orientation. 112 said that they…

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Q: Flight Arrivals - Listed below are arrival delays (in minutes) of randomly selected American…

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Q: Use the given confidence interval to find the margin of error and the sample mean.   ​(13.7​,20.7​)…

A: Given Data Lower limit = 13.7 upper limit = 20.7

Q: Construct and interpret a 95% confidence interval. Please show software/calculator work. Follow up…

A: The 95% confidence interval for the proportion of Americans that exercise in the morning is…

Q: Use the given confidence interval to find the margin of error and the sample mean. (12.7,20.9) The…

A: Given  the confidence interval (12.7, 20.9) Lower limit = 12.7 Upper limit = 20.9   The sample mean…

Q: Which of the following options will cause a decrease in the margin of error for a confidence…

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Q: (a) Use the summary to determine the point estimate of the population mean and margin of error for…

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Q: Find the condence level and a for a. a 90% confidence interval.b. a 99% confidence interval.

A: a.The confidence level and α for a 90% confidence interval is obtained below:The confidence level is…

Q: Determine the confidence level for confidence interval shown in the figure below.

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Q: Aaliyah wants to know if there is a difference between the proportions of customers who just order…

A: For Restaurant A, sample size is n1 = (79 + 46) = 125, Number of customers who order water X1 = 79…

Q: How do you find the confidence interval for a population mean?

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Q: If someone were to ask you what this particular confidence interval means, what would you say?

A: According to confidence interval  In the given image  The given confidence interval is Just…

Q: Construct a 99% confidence interval for the proportion of those aged 65 and over who have sleep…

A: Given

Q: Find the confidence level and αfor a 95​% confidence interval.   What is the confidence​ level?…

A: From the provided information, The required confidence level = 95%

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: According to the provided information, The confidence interval is ​(0.745​, 0.771​) The margin of…

Q: Determine whether the following statements are true or false. Increasing the sample size while…

A: If the sample size increases, then the standard error of statistic decreases. The margin of error is…

Q: What happens to the margin of error if you increase the confidence level?

A: We know that, Margin of error=zσn

Q: Explain what a confidence interval is, and what is the confidence level

A: A confidence interval is a technic by which we can find an interval that likely would contain an…

Q: Interpret

A: Given,For not married : sample size (n1) = 39sample mean (x̄1) =  22.9sample standard deviation (s1)…

Q: As the confidence gets larger, what happens to the width of the confidence interval? Wider / Larger…

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Q: ☐ True ☐ False The confidence interval for ??= .01 will always be smaller than the confidence…

A: The significance level is represented by α.

Q: ollege tuition: A simple random sample of 40 colleges and universities in the United States has a…

A: A random sample of 40 colleges; n=40 A mean tuition of 18900 with a standard deviation of 10400;…

Q: Round answer to two decimal places. Just for B

A: (a) The value of α can be obtained as;

Q: A 95% confidence interval is narrower than a 90% confidence interval for the same data set. O True O…

A: We have to find given probability.

Q: Construct the confidence interval for the population mean μ.   c=0.90​, x=16.3​, σ=5.0​, and n=95…

A: Construct the confidence interval for the population mean μ.   c=0.90​, x=16.3​, σ=5.0​, and n=95…

Q: Use the given confidence interval to find the margin of error and the sample mean.   ​(13.9​,22.9​)…

A:

Q: A marketing firm is interested in studying what types of links are most profitable on their website.…

A: Given Information: Sample size n=50 visitors Out of which x=35 clicked on a particular link. (a) To…

Q: Determine the margin of error for the confidence interval for the proportion: <0.58<p0.821   The…

A: We have given  confidence interval for the proportion: 0.58&lt;p&lt;0.821 LCL =0.58 UCL=0.821…

Q: Find the confidence level and a for a. an 85% confidence interval.b. a 95% confidence interval.

A: The level of significance can be defined as the probability of rejecting the null hypothesis when it…

Q: Briefly describe the relationship between confidence interval and hypothesis testing.

A: Briefly describe the relationship between confidence interval and hypothesis testing.   A 95% CI…

Q: In a random survey of 2221 North Americans 689 of them had blood type A+. Construct a 94% Confidence…

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Q: Use the given confidence interval to find the margin of error and the sample mean. (3.95,6.31) The…

A: Given confidence interval is (3.95,6.31)

Q: In a survey, 1000 Grade 7 students were asked if they read storybooks. There were 318 who said Yes.…

A: Givenn=1000x=318p^=3181000=0.318Confidence interval = 95%

Q: a) Construct a 99% confidence interval for the proportion of all seafood sold in the country that is…

A: Given: Sample size = n = 575 Sample proportion = p^ = 0.34 a) We have to find 99% confidence…

Q: We survey 1004 teens age 13-19, we record whether or not they have had sex education. 817 respond…

A: a) The point estimate of population proportion is sample proportion. The number of teens who have…

Q: Determine the confidence level. Determine the confidence level for confidence interval shown in the…

A: Let α denote the level of significance. Then confidence level=1001-α% Graphically, in the case of…

Q: Use the given confidence interval to find the margin of error and the sample mean. (14.2,24.0) The…

A: Given,confidence interval is (14.2 , 24.0)

Q: a) Construct a 99% confidence interval for the proportion of all females who rate themselves as…

A: As per instruction , solving only part a and c   a) Total Females surveyed = 760 Number of females…

Q: (b) What is the margin of error for the confidence interval? The margin of error is (Type an integer…

A: It is given that, the confidence interval is (171.5, 176.1).

Q: Find the confidence level and α for an 86​% confidence interval. What is the confidence​ level?…

A: We have to determine the confidence level and level of significance for 86% confidence interval.

Q: Find the confidence level and α for a 91​% confidence interval. What is the confidence​ level?…

A: Note- You have posted 3 different question. As per our policy we can answer only 1st question. If…

Q: Refer to the accompanying stayed outside and construct a 90% confidence interval as many of the mean…

A: We have, CI = xbar +/- sigma/sqrt(n)

Q: ind the point estimate, the standard error, and the margin of error for the given confidence levels…

A: The provided information is  n=80 x=29 C=0.92 α=0.08   The critical value is  zc= ±1.7507 (from…

Q: what is the confidence coefficient of the following confidence levels? 99% Confident? 90%…

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Q: The sample proportion pˆ for the confidence interval 0.138 < p < 0.182 is

A: Given confidence interval is 0.138&lt;p&lt;0.182Upper Limit = 0.182Lower Limit = 0.138

Q: Use the given confidence interval to find the margin of error and the sample mean. (14.2,24.0) The…

A: Sample mean = (upper limit+lower limit)/2