Ascientist testing the effects of a new medicine that will treat anemia, a blood disorder, uses a sample size of 15 patients for a study. all of the patients are from the same large city, are of varying ages, and are male. what is an accurate statement regarding this investigation?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error