Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Public Health and Nutrition
Elevated levels of mercury can cause hair loss, fatigue, and memory lapses. The concentration of mercury in a person's blood can be greatly affected by diet, specifically, the amount of fish consumed. Random samples of adults who eat fish two to three times per week and of adults who never eat fish were obtained. The mercury concentration in the blood of each person was measured (in micrograms per liter of blood), and the summary data are reported in the table below.
Assume both distributions are normal.
a. Find a 95% confidence interval for the population mean mercury concentration in the blood of adults who eat fish regularly.
b. Find a 95% confidence interval for the population mean mercury concentration in the blood of adults who never eat fish.
c. The safe level of mercury (set by the U.S. Environmental Protection Agency) is five micrograms per liter of blood. Is there any evidence to suggest either group is over the safe limit of mercury concentration?
d. Use the confidence intervals in parts (a) and (b) to determine whether the two groups have different mean mercury concentration levels.
given the following information the sampled population is normally distributed n 81 sample mean 38.7 and the
The main goal of correlation research is ______________
Create a probability model for the outcome on the spinner.- Find the mean and standard deviation of the spinner results.
sands inc. makes particleboard for the building industry. particleboard is built by mixing wood chips and resins
q1. a high volume production process produces on average 3.4 defective parts per hour and the number of defects in an
Test two integrated circuits. In each test, the probability of rejecting the circuit is p. Let X be the number of rejects (either 0 or 1) in the first test and let Y be the number of rejects in the second test. Find the joint PMF PX,Y (x, y).
new car design specifications are being considered to control the variation of the head injury measurements. use the
The general social survey is an annual survey given to about 1,500 U.S. adults selected at random. Each year, the survey contains several questions meant to probe the respondents' views of employment.
suppose 1568 of 2033 registered voters sampled said they planned to vote for the republican candidate for president.
question a pair of dice is rolled. the sum of the faces on top is observed. what are the expectation variance and
in many ways comparing multiple sample means is simply an extension of what we covered last week. just as we had 3
these data are observations collected using the completely randomized designnbspnbspsample 1nbspnbspnbspnbspsample
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd