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A doctor claims that the standard deviation of systolic blood pressure is 12 mmHg. A random sample of 24 patients found a standard deviation of 14 mmHg. Assume the variable is normally distributed.At a = 0.01, what are the critical X²
The number of power outages at a golf course has a Poisson distribution with a mean of 7 outages per year. the probability that there will be between 1 and 2 inclusive power outages in a year is?
The life span of a battery is normally distributed, with a mean of 2100 hours and a standard deviation of 50 hours. what percent of batteries have a life span that is more than 2185 hours? Would it be unusual for a battery to have a life span that is..
In its third year, the Liberty Football League averaged 16,050 fans per game, with a standard deviation of 2,050 fans. According to these data, a. What is the probability that the number of fans at any given game was greater than 20,000?
Find the equation of the regression line for the given data. What is the predicted value of Y when X = -2? What is the predicted value of Y and find the correlation coefficient between X and Y. Is there a weak or strong, positive or negative corr..
What is the conclusion you can draw regarding research question that was posed in this research - would you now move on to interpret the results of the Tests of Between-Subjects Tests?
A medical doctor wishes to test the claim that the standard deviation of the systolic blood pressure of deep sea divers is greater than 450. To do so, she selected a random sample of 25 divers and found s = 468. Assuming that the systolic blood press..
A finite number of coins are placed on a row of slots of finite length
What is this maximin value
Select the report of at least 2 polls taken on two different topics. (For example, the percent in favor versus opposed to abortion, the economy, a particular candidate, a certain product, etc. ) Various polls can be found at www.zogby.com or www.rasm..
Consider the following situation: Data Set A: Average = $157 Standard Dev. = $84 Data Set B: Average = 34 oz. Standard Dev. = 21 oz
A researcher is interested in gender differences in attitudes toward flying
Determine whether this data already provides an expected relative error introduced by the simulation of below 5%. If not, compute how many new simulations you should run in order to reduce the expected relative error introduced by the simulation b..
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