In a sample of n 15 lichen specimens, the researchers found the mean and standard deviation of the amount of the radioactive element, cesium-137, that was present to be 0.009 and 0.005 microcurie per illiter, respectively. Suppose the researchers want to increase the sample size in order to estimate the mean μ to within 0.001 microcurie per milliliter of its true value, using a 95% confidence interval. Complete parts a through c. a. What is the confidence level desired by the researchers? The confidence level is b. What is the sampling error desired by the researchers? The sampling error is c. Compute the sample size necessary to obtain the desired estimate. The sample size is(Type a whole number.)

a) confidence level desired by the researcher is 95%

b) margin of error by the researcher is 0.001

c) the sample size  is estimated to be 115

Step-by-step explanation:

check the attachment for detailed explanation, thanks.

well the 1 and -1 are always after the 0 and the 0 is inthe middle. s thats what i would guess. but i dont know what a slope of 2 is sorry

step-by-step explanation:

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.