A 95% confidence interval estimate for a population mean is determined to be between 94.25 and...

A 95% confidence interval estimate for a population mean is determined to be between 94.25 and 98.33 years. If the confidence interval is increased to 98%, the interval would

		become narrower
		remain the same
		become wider

Expert Solution

TOPIC:Test for the population proportion.

orchestra answered 1 year ago

At a confidence level of 95% a confidence interval for a population proportion is determined to...

At a confidence level of 95% a confidence interval for a population proportion is determined to be 0.65 to 0.75. If the sample size had been larger and the estimate of the population proportion the same, this 95% confidence interval estimate as compared to the first interval estimate would be A. the same B. narrower C. wider

Construct a 95% confidence interval to estimate the population mean when Mean=125 and s = 26...

Construct a 95% confidence interval to estimate the population mean when Mean=125 and s = 26 for the sample sizes below. a)N=40 b)N=70 c) N=100 A.)The 95% confidence interval for the population mean when N=40is from a lower limit of_____to an upper limit of ______. B.) The 95% confidence interval for the population mean when N=70is from a lower limit of _____to an upper limit of ______. C.) The 95% confidence interval for the population mean when N=100is from a...

Construct a 95% confidence interval to estimate the population mean with x overbar equals 104 and...

Construct a 95% confidence interval to estimate the population mean with x overbar equals 104 and sigma equals 28 for the following sample sizes. a) n equals 30 b) n equals 48 c) n equals 66

Use the given data to find the 95% confidence interval estimate of the population mean μ...

Use the given data to find the 95% confidence interval estimate of the population mean μ . Assume that the population has a normal distribution. IQ scores of professional athletes: Sample size n=25 Mean=103 Standard deviation s=15 Answer: ____ <μ< _____

Use the given data to find the 95% confidence interval estimate of the population mean μ....

Use the given data to find the 95% confidence interval estimate of the population mean μ. Assume that the population has a normal distribution. IQ scores of professional athletes: Sample size n=20 Mean x¯¯¯=104 Standard deviation s=14 <μ<

Construct a 95% confidence interval to estimate the population mean with x=100 and σ=26 for the...

Construct a 95% confidence interval to estimate the population mean with x=100 and σ=26 for the following sample sizes. a) n equals= 35 b) n equals= 43 c) n equals= 60 With 95% confidence, when n=35, the population mean is between the lower limit of _ and the upper limit of _.

Construct a 95% confidence interval to estimate the population mean with x̅ =109 and σ=31 for...

Construct a 95% confidence interval to estimate the population mean with x̅ =109 and σ=31 for the following sample sizes. n =32 n =45 n =65 A) with 95% confidence when n = 32, the population mean is between the lower limit ___ and upper limit ____ (round to 3 decimals) B) with 95% confidence when n = 45, the population mean is between the lower limit ___ and upper limit ____ (round to 3 decimals) C) with 95% confidence...

Construct a 95% confidence interval to estimate the population mean with x=118 and σ=25 for the...

Construct a 95% confidence interval to estimate the population mean with x=118 and σ=25 for the following sample sizes. a) n=38 b) n=41 c) n=69 a) With 95% confidence, when n= 38, the population mean is between the lower limit of and the upper limit of . (Round to two decimal places as needed.) b) With 95% confidence, when n= 41, the population mean is between the lower limit of and the upper limit of . (Round to two...

95% Confidence Interval: 86.19 ± 0.364 (85.8 to 86.6) "With 95% confidence the population mean is...

95% Confidence Interval: 86.19 ± 0.364 (85.8 to 86.6) "With 95% confidence the population mean is between 85.8 and 86.6, based on 33945 samples." Short Styles: 86.19 (95% CI 85.8 to 86.6) 86.19, 95% CI [85.8, 86.6] Margin of Error: 0.364 What is the impact of your margin of error on your findings? Explain. Is there enough evidence to reject the null hypotheses, explain in plain English?

Construct a 95% Confidence Interval to estimate the population mean/proportion in the claim below. What can...

Construct a 95% Confidence Interval to estimate the population mean/proportion in the claim below. What can you conclude from this result regarding the claim? Claim: Is the proportion of people using public transportation is greater than private vehicles? Data: Ways to travel to work (100 people surveyed) Method Number Public Transportation 46 Private Vehicle 44 Uber, Lyft 10 Total 100

Question