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A pharmaceutical company conducted studies on a new medication for sleep apnea. The first study randomly chose 500 participants. Half of the participants were given the experimental drug, and the other half were given a placebo. Later, a second study was conducted using a random block design. First, the 500 participants were separated by gender. Then, half of the participants were randomly assigned the experimental drug or given a placebo. What improvements were demonstrated by the random block design over the completely randomized design? Explain how a matched pair design based on age would be an improvement over the random block design.
Derive and expression for the probability that an incident electromagnetic wave A→(r→ t) = Ao→cos(k→.r→ - ωt) pops the particle out of the potential well.
Are demographic characteristics of community residents related to fear of crime and is the source of news and information about crime on the Gold Coast related community resident's fear of crime?
Compare and Contrast Colonial and American slavery. Describing the conditions, treatment, laws and punishments of slaves in each of these societies.
Consider two independent events, A and B, where the P(B) is 0.44 and the probability that A does not occur or B occurs is 0.74.
Use the given data to find the best predicted value of the response variable.Eight pairs of data yield r = 0.708 and the regression equation y = 55.8 + 2.79x. Also, mean y = 71.125. What is the best predicted value of y for x = 5.7?
The data comes from a set of scores on a 50 point Bilogy 101 test. 90 subjects took the test. The scores range from 12-50. How to make a simple frequency distribution table, using the raw data?
A sample of 121 provided a sample mean of 77.3. The population standard deviation is known to be 16.5. Compute the value of the test statistic.
What does it eat? How does it affect the food? Is the microorganism killed off before human consumption or is it still alive and active in the food?
question 1 a dice is rolled five times.i what is the probability that it shows 3 even numbers?ii what is the
a new integrated computer system is to be installed worldwide for a major corporation. bids on this project are being
the waiting times in minutes for 11 customers at a supermarket are 13951547911142 and 6. determine the approximate
The data in the following table come from a time when the United States had a maximum speed limit of 55 miles per hour in all states.
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