a confidence interval for a population mean has a margin of error of 3.3. a. Determine...

Question

Question

a confidence interval for a population mean has a margin of error of 3.3.

a. Determine the length of the confidence interval.

b. If the sample mean is 45.9, obtain the confidence interval

The length of the confidence interval is ???

. The confidence interval for μ is from??? to ???

Answer 1

Answer #1

a)

length of the confidence interval is =2*margin of error =2*3.3=6.6

b)

confidence interval =sample mean -/+ margin of error =45.9-/+3.3 =42.6 to 49.2

Answer 2

Similar Homework Help Questions

A confidence interval for a population mean has a margin of error of 3.1. a. Determine...

A confidence interval for a population mean has a margin of error of 3.1. a. Determine the length of the confidence interval. b. If the sample mean is 46.8, obtain the confidence interval. a. The length of the confidence interval is b. The confidence interval for μ is from | | to
(1 point) A confidence interval for a population mean has length 26. a) Determine the margin...

(1 point) A confidence interval for a population mean has length 26. a) Determine the margin of error. b) If the sample mean is 55, obtain the confidence interval. Confidence interval:
A confidence interval for a population mean has a margin of error of 2.5. If the...

A confidence interval for a population mean has a margin of error of 2.5. If the sample mean is 69.1, obtain the confidence interval.

Determine the point estimate of the population mean and margin of error for the confidence interval....

Determine the point estimate of the population mean and margin of error for the confidence interval. Lower bound is 18, upper bound is 24. The point estimate of the population mean is . The margin of error for the confidence interval is .
Determine the point estimate of the population mean and margin of error for the confidence interval....

Determine the point estimate of the population mean and margin of error for the confidence interval. Lower bound is 17, upper bound is 25. The point estimate of the population mean is The margin of error for the confidence interval is
Determine the margin of error for a confidence interval to estimate the population mean with nequals22...

Determine the margin of error for a confidence interval to estimate the population mean with nequals22 and s = 11.6 for the confidence levels below. a) 80% b) 90% c) 99% a) The margin of error for an 80% confidence interval is nothing.

Determine the margin of error for an 80% confidence interval to estimate the population mean with...

Determine the margin of error for an 80% confidence interval to estimate the population mean with sigmaσequals=51 for the following sample sizes. a) n=33 b) n=45 c) n= 63
Determine the margin of error for a confidence interval to estimate the population mean with n=25...

Determine the margin of error for a confidence interval to estimate the population mean with n=25 and s =1.6 for the confidence levels below. a) 80% b) 90% c) 99% a) The margin of error for an 80% confidence interval is. (Round to two decimal places as needed.) b) The margin of error for a 90% confidence interval is. (Round to two decimal places as needed.) c) The margin of error for a 99% confidence interval is. (Round to two...
Determine the margin of error for a confidence interval to estimate the population mean with n...

Determine the margin of error for a confidence interval to estimate the population mean with n = 35 and ? = 49 for the following confidence levels. a) 91% b) 94% c) 97% a) with a 91% confidence level, the margin of error is (Round to two decimal places as needed.)

Determine the margin of error for a confidence interval to estimate the population mean with n=18...

Determine the margin of error for a confidence interval to estimate the population mean with n=18 and s =14.5 for the confidence levels below. a) 808% b) 90% c) 99% a) The margin of error for an 80% confidence interval is (Round to two decimal places as needed.)