Higher or lower level of plasma glucose concentration

Assignment Help Basic Statistics

Reference no: EM13103978

Plasma glucose levels are used to determine the presence of diabetes. Suppose the mean in (plasma-glucose) concentration (mg/dL) in 35-44 year olds is 4.86 with standard deviation = 0.54. A study of 100 sedentary people in this age group is planned to test whether they have a higher or lower level of plasma glucose then the general population.

If the expected difference is 0.10 units, then what is the power of such a study if a two-sided test is to be used with a=.05. How many people would need to be studied to have 80% power under these assumptions?

Reference no: EM13103978

Questions Cloud

Calculate the total charge on the outer surface : A -3.07 ?C charge is placed at the center of a conducting spherical shell, and a total charge of +6.70 ?C is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.

Explain the strengths and weaknesses of suggestion : Write two suggestions that Marsha Warren must do when she returns to classroom. Support suggestions from course text and/or a scholarly source from online library.

Develop graphic rating scale for university teacher : Should Nike be held responsible for working conditions in foreign factories that it does not own, but where sub-contractors make products for Nike? Develop a graphic rating scale for a university teacher.

What is the length of the incline : A skier is gliding along at 3.6 m/s on horizontal, frictionless snow. He suddenly starts down a 10 degree incline. His speed at the bottom is 17 m/s .

Higher or lower level of plasma glucose concentration : Plasma glucose levels are used to determine the presence of diabetes. Suppose the mean in (plasma-glucose) concentration (mg/dL) in 35-44 year olds is 4.86 with standard deviation = 0.54.

How long is the rock in the air : A rock is tossed straight up with a velocity of 14 m/s When it returns, it falls into a hole 10m deep.

How much charge can be placed on a capacitor : (a) How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 6.00 cm2? (b) Find the maximum charge if bakelite is used between the plates instead of air.

Number of debilitating network viruses : What if the number of debilitating network viruses detected in a day at the firewalls of an Internet service provider within a certain geographic region is fueling a possible management decision to upgrade the detection system.

Finding probabilities given bernoulli distribution : A True-False test was developed for a Risk Management class. A student, who didn't study, decided to randomly guess the answer on each question.

User Account

All Pages