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Based on a four year (2004-2007) study of over 30,000 people who were 45 + years, where all individuals were followed up regularly for diet and health changes, researchers, Tsivgoulis el al. (Neurology, 2013) reported that the Mediterranean diet was linked to better memory and cognitive skills.
a. Identify the explanatory and response variables.
b. Identify a confounding variable whose effect on memory and cognitive skills might be confounded with that of the explanatory variable identified in part (a.), providing an alternative explanation for the improved memory and cognitive skills among those on the Mediterranean diet. Also, include a diagram showing how this explanation works.
Measurements made on the internally compensated amplifiers listed below provide the dc gain and the frequency at which the gain has dropped by 20 dB. For each, what are the 3 dB and unity-gain frequencies?
What is the probability that a first interview will last 40 minutes or longer?
Define the parameter of interest in the context of this study and assign an appropriate symbol to it.
The Sentry Lock Corporation manufactures a popular commercial security lock at plans in Macon, Louisville, Detroit, and Phoenix. The per unit cost of production at each plant is $35.5, $37.5, $39, and $36.25, respectively, while the annual product..
Furthermore, you could also perform a regression on the data so you have a model with which you can predict other people's IQs based on their mother's IQ.
provide me a half page response to below discussion post.discussionto reiterate my workplace is a college where i work
We are intersted in the number of students who prefer brand C cola. identify the distribution of the random variable and the mean,standard deviation.
Twenty students agreed to participate in a study on colds. Ten were randomly assigned to receive vitamin C, and the remaining 10 received a tablet that looked.
What is the 95% confidence interval for the amount of time spent on personal issues?
Find the best predicted value of y hat (weight) given an adult male who is 169 cm tall. Use a 0.05 significance level.
1. What was the difficult decision facing George Washington in 1787? 2. What political events brought about Washington's decision? 3. What were his main reasons for not attending the Constitutional Convention in Philadelphia?
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