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To compare the effects on energy intake of drinking wine either before or with a meal, 11 men participated in a laboratory study. On each day of three day trial-period, participants were given breakfast in the laboratory then 3 h later returned for a two course (bread, pasta) lunch. In the control condition, participants had no wine; in the wine before meal group had 375 ml of red wine consumed 20 min before lunch; and in the wine with the meal group had 125 ml of red wine consumed with the starter and 250 ml of red wine was consumed with the main course.
The researchers also examined the effect of wine consumption on how tired men felt before & after lunch. Tiredness ratings indicated a significant main effect of: time, a main wine consumption, and a significant time by wine consumption interaction. Participants reported a significant increase in tiredness following lunch.
In the group that consumed wine prior to meals, its participants reported a larger increase in tiredness following lunch, compared to the group which had wine during their meal. The control group is not included in this analysis.
Sketch a graph that reflects these results with labels.
Create the 95% confidence interval for proportion of adults from Country A who say human activity contributes to global warming.
Picking numbers at random I pick two numbers uniformly at random from {1; 2; : : : ; 6n}, with replacement. What is the probability that both numbers choose are divisible by 2?
An insurance company, based on past experience, estimates the mean damage for a natural disaster in its area is $5,000. After introducing several plans to prevent loss
The intelligence Quotient test scores normally distributed with a mean of 100 and a standard deviation of 15.
What is the p-value and compute a 95% CI for the difference in means between the two groups?
Let Z be a standard normal random variable. Use the calculator provided to determine the value of c such that P(-c lesser than or equal to Z lesser than or equal to c)= 0.9534
an industrial sewing machine uses ball bearings that are targeted to have a diameter of 0.75 inch. the lower and upper
An investment project is expected to earn $100,000 on average with a standard deviation of $50,000. Assume earnings from this investment project is a normal distribution. Of the next 15 people that invest in this project, what is the probability t..
Formulate a linear programming model for this problem.
What is the probability of randomly selecting a student with a treadmill time greater than 25 minutes? In symbols, p(X>25)= ? What is the probability of randomly selecting a student with a time greater than 30 minutes? In symbols, p(x>30) ?
let fx ae-2x - e-3x for x gt or equal to 0 and fx 0 elsewhere. find a so that fx is a probability density
Assume that a simple random sample is selected from a normally distributed population, use eith the P-value method or the tradiitonal method of testing hypotheses.
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