Question: What is the minimum sample size required to estimate a population mean with 95% confidence when the desired margin of error is E = 1.8?

What is the minimum sample size required to estimate a population mean with 95% confidence when the desired margin of error is E = 1.8? The population standard deviation is known to be 10.63.

n = 134

n = 75

n = 74

n = 133

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

A research group wishes to estimate the main number of hours that high school students been watching TV on a weekday. Margin of error of error of E = 0.15 Our is desired. Past study suggests that...

A research group wishes to estimate the mean number of hours that high school students spend watching TV on a weekday. A margin of error of E = 0.35 hour is desired. Past studies suggest that a...

Nielsen Media Research wishes to estimate the mean number of hours that high school students spend watching TV on a weekday. A margin of error of E = 0.25 hour is desired. Past studies suggest that a...

What is the minimum sample size required to estimate a population mean with 95% confidence when the desired margin of error is 1.6? The population standard deviation is known to be 10.51. Multiple...

What is the minimum sample size required to estimate a population mean with 95% confidence when the desired margin of error is 1.6? The population standard deviation is known to be 10.51.

l HW Score: 41.64%, 33.31 of Question 13, 3.2.21 80 points 0 Points: 0 of 3 A research group wishes to estimate the mean number of hours that high school students spend watching TV on a weekday. A...

Determine the sample size required to estimate a population mean to within 12 units given that the population standard deviation is 90. Use a confidence level of 90%. Sample Size =

If you could please help with questions 3,5,6,7,and 8. IF YOU COULD PLEASE ANSWER ALL THESE QUESTIONS : Assume that the weight loss for the first month of a diet program varies between 6 pounds and...

1. Doctors measure the weights (in pounds) of preterm babies. What type of data is collected? (Points : 1) Nominal Ordinal Interval Ratio 2. A sample of 80 juvenile salmon is grouped into the...

(4 points) Determine the sample size required to estimate a population mean to within 10 units given that the population standard deviation is 60. A confidence level of 90% is judged to be...

Find the strain energy stored due to bending of a steel prismatic bar of cross-section 22241 100 mm x 150 mm deep and 2 meters long acting as a cantilever supporting a load of 20 kN at the free end....

Consider a U.S. investor who owns a portfolio of Japanese securities worth 160 million. In order to hedge currency risk, he considers buying currency puts on yen instead of selling futures contracts....

47. LO.5 Night, Inc., a domestic corporation, earned $300,000 from foreign manufacturing activities on which it paid $90,000 of foreign income taxes. Nights foreign sales income is taxed at a 50%...

Find the forward grip reach ( whole arm outstretched in sagittal plane parallel to the ground ) that would accommodate a reasonably large percentage of the general population ( Assume forward grip...

Are materials and labor costs fixed costs or variable costs?

Explain how total fixed costs change as the level of activity changes.

Explain stair-step costs and give an example.