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Kava is considered to be a form of 'herbal' valium. There are several ways in which it is believed to have its anxiety-reducing effects. For instance, it is speculated that in the amygdala, a major part of the anxiety/fear system, kava works to 1) enhance binding at GABA receptors, 2) block the re-uptake of norepinephrine, and 3) decrease the activity of monoamine oxidase.
If you go online to look up the side effects of kava, you'll find the following: Higher doses and long term use can lead to hypertension, shortness of breath, mild GI symptoms, enlarged pupils, and possible pulmonary hypertension. Assume that kava acts on the body in a similar way as it does in the brain. Please explain why we see these side effects.
Consider a hypothesis test of differences of means for two independent proportions x1 and x2. Suppose that both sample sizes are greater than 30 and that you knowσ1 andσ2. Is it standard practice to use the normal distribution or a Student's t dis..
Test the claim that the Snickers bars have a mean weight that is different than 20.1 grams. Because shutting down the plant is very expensive, test the claim at the .01 level of significance.
A machine will allow the farm to inspect 500 eggs per hour. What are the initial center line and control limits for a chart of the hourly percent of damaged eggs?
What is the probability that the debt for a borrower with good credit is more than $18,000 - What is the probability that the sample proportion p' will be between .20 and .40 - What amount should you bid to maximize the probability that you get the p..
Douglas Boats is considering the possibility of expanding the warehouse for the WM-4 motors. How much should Douglas Boats expand, and how much would it be worth for the company to make the expansion? Assume demand is constant throughout the year.
Do data meet the assumptions necessary for inference? What would you like to know that you don't?- Create a 95% confidence interval.
Test the hypothesis that the average hourly wage for City A is more than $0.50 per hour above the average hourly wage in City B using the following sample data:
Suppose that the risk of allergies for the children of nonsmokers is 0.15. What is the risk of allergies for the children of smokers?
Refer to given Exercise. Which method of finding probabilities do you think was used to find the "90 percent chance" and "37 percent chance"?
Consider that 10 observations were selected from a normal population whose variance is 64. Observations are: 58, 62, 45, 50, 59, 65, 39, 40, 41 and 52.
Compute the M-W U and test it for significance. What does your decision mean in the context of the exercise?
Find, as Cardano did, the expected total without finding its distribution - Large prizes were given for large totals with a modest fee to play the game. Explain why this could be done.
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