If n = 526 and (p - hat )= 0.30, find the margin of error at a 98% confidence level

Q: A random sample of 40 students taken from a university showed that their mean GPA is 2.94 and the…

A: Obtain the 99% confidence interval for the population mean GPA of students: Denote the population…

Q: The mean of the numbers of chocolate chips in a sample of 40 Chips Ahoy regular cookies is 23.95 and…

A: From the provided information, Sample size (n) = 40 Sample mean (x̄) = 23.95 Sample standard…

Q: What is the critical t-value (found in the t-table) if you are making a 90% confidence interval with…

A: Confidence level=90%Sample size(n)=20

Q: y=95% , Confidence Level = 99% , n = 20- Two-sided Tolerence Interval

A: Givenγ=95%Confidence interval =95%n=20 For any series of measurements let the sample mean and…

Q: A thread manufacturer wants to estimate the mean tensile strength of a particular type of thread.  A…

A: Given : Sample Size, n = 15 Sample Mean, x̄ = 7.64 sample standard…

Q: Find the critical value z α 2corresponding to a 86% confidence level.

A:

Q: A random sample of 300 high school students in a particular town showed that 165 smoke on a regular…

A: Given Information: Sample size (n) = 300  Proportion of students who smoke (p) = 165/300 = 0.55

Q: You collect a random sample of 73 webpage load times  in milliseconds (ms) from the server logs. The…

A: The sample mean is 104, sample standard deviation s 32.4, and sample size is 73. The degrees of…

Q: You collect a random sample of 70 webpage load times  in milliseconds (ms) from the server logs. The…

A: Given that,  The degree of freedom is, df=n-1   =70-1   =69 Critical value: Using the t-table, the…

Q: If n = 590 and ˆp=0.48, find the margin of error at a 99% confidence level E=

A: If n = 590 and ˆp=0.48, find the margin of error at a 99% confidence level

Q: A biologist has been collecting data on the heights of a particular species of hibiscus. The height…

A: Let , X be the height of the hibiscus  X follows Normal distribution with mean μ = 160 cm and…

Q: A sample of 33 airline passengers found that the average check-in time is 2.167. Based on long-term…

A: From the provided information,Population standard deviation (σ) = 0.48Sample mean (x̄) = 2.167Sample…

Q: random sample of 500 Jordanian firms, it was found that 420 Jordanian firms made a profit, The…

A: Given that  Sample size (n) = 500 Films made profit (x) = 420 Sample proportion (p) = 420500=0.84…

Q: A sample of 36 men has a mean weight of 175 pounds with a sample standard deviation of 13 pounds.…

A: It is given that sample mean is 175 and standard deviation is 13.

Q: ollect a random sample of 88 webpage load times  in milliseconds (ms) from the server logs. The…

A: As the population standard deviation is unknown the critical value from student t distribution at…

Q: If n=190 and p' (p-prime) = 0.6, construct a 99% confidence interval. Give your answers to three…

A:

Q: The average measured verbal IQ (IQV) scores of children is 100.  In a sample of 20 children, the…

A: Population mean (µ) = 100Standard deviations (σ) = 18.5Sample size (n) = 20Sample mean (x̅) =…

Q: The mean GPA at a university is reported to be 2.69. A sample of 100 students at this university has…

A: The point estimate of population mean is sample mean.

Q: calculate t value if df is 24 and  95% confidence interval

A: Given Information: Degrees of freedom df=24 Confidence level = 95% = 0.95 Significance level…

Q: FIND Za, FOR THE 94% /2 CONFIDENCE INTERVAL

A: Step 1: Subtract the confidence level from 100% to find the α level: 100% – 94% = 6%. Step 2:…

Q: ou collect a random sample of 66 webpage load times  in milliseconds (ms) from the server logs. The…

A: Given data, n=66 x=397 s=33.7 Alpha=0.01 df=n-1=65 t-critical value is tc=2.653

Q: Type only the upper interval by using  type your answer to the nearest hundredths place.

A:

Q: CALCULATE THE LOWER 95% confidence inteveral when mean=27 , SE=1.23, n=14

A:

Q: determine the 95% confidence interval or range in an observed score of 86 if SD is 5.8 and the…

A: 95% Confidence interval is 79.4934 and 92.5066 Explanation: Data given, r=0.82 X=86 SD=5.8 Standard…

Q: BBM is trying to estimate the mean salary. A sample of 15 employees shows that the sample mean 559…

A:

Q: You collect a random sample of 50 webpage load times  in milliseconds (ms) from the server logs. The…

A: Given, n = 50 x¯ = 210 s = 33.6

Q: If n=580 and p' (p-prime) = 0.5, construct a 90% confidence interval. Give your answers to three…

A: The population proportion CI is,    p^±Zp^ (1-p^)nwherep^=sample proportionn=sample size

Q: Suppose that a 92% Confidence Interval for estimating the average heights, in inches, of all college…

A: we use the following, margin of error = Z a/2 * (standard error)where, Za/2 = Z-table…

Q: A researcher collected sample data for 16 middle-aged women. The sample had a mean serum cholesterol…

A: Given , Sample size , n = 16Sample mean , 191.7standard deviation , s = 8confidence interval  = 95%…

Q: The distribution of study times for first year students follows a Normal distribution with standard…

A: Introduction :-  We have to find, 88.58% confidence interval for population mean Margin of error.

Q: Find the critical valuez Subscript alpha divided by zα/2that corresponds to the confidence…

A: Given information  Confidence level = 0.85 Significance level (α) = 1 – 0.85 = 0.15 Critical value…

Q: The confidence interval with mean value 2 and margin error is 1.3 is

A: Given that mean = 2 Margin of error  = 1.3

Q: The 95% Confidence Interval for the weights (in pounds) of  a special type of rock has found to be…

A: Given, The 95% Confidence Interval for the weights (in pounds) of  a special type of rock has found…

Q: A random sample of newborn baby boys were weighed. x = 6.7 lb s = 1.3 lb n = 79 1. What is the point…

A:

Q: You collect a random sample of 75 webpage load times  in milliseconds (ms) from the server logs. The…

A:

Q: Find the critical value for a 94% confidence interval when the sample size is 51 and the population…

A: Given Level of significance ɑ=0.06 , n=51  Population standard deviations σ known

Q: There is a sample of 30 people and their shower times. What is the 95% confidence interval when…

A: Given Sample size=30 Sample mean=23.50 Standard deviations=9.69

Q: Find the error bound for an unknown population mean or the margin of error that corresponds to a 85%…

A: Find the error bound for an unknown population mean or the margin of error that corresponds to a 85%…