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One prominent physician claims that 70% of chose with lung cancer are heavy smokers. If his assertion is correct. find the probability that out of 10 such patients recently admitted to a hospital
a) more than half are heavy smokersb) 4 are heavy smokersc) less than 2 are non-smokers
I am to compute expected values, test stat, use p-value approach and determine critical value with alph at .05
If the airline industry proudly announces that it has set a new record for the longest period of safe flights, would you be reluctant to fly? Are the airlines due to have a crash? Explain your answer.
What is the appropriate set of hypotheses to test such that a possible outcome of the test would indicate;
Following is based on information from Statistical abstract of the United States, Dec, 1992. Are A and B mutually exclusive?
Dr. Bundy recently earned permission from the warden of a local prison to use prisoners to study the effects of the drug Zoloft on depression.
It was thought that hypnosis would lower a person's desire to smoke. A researcher decided to investigate this hypothesis using a paired-sample sign test in which the number of cigarettes/day smoked by subjects was recorded before and after hypnosi..
6 % have both defects. If you purchase one of the flashights in this shipment, find the probability that it has the following: defective bulb or a defective battery.
A sample standard deviation of 25 a sixth baby has a birth weight of 125. After the sixth baby, the sample standard deviation is?
Assume that the standard deviation of monthly rents paid by students in a particular town is $40. A random sample of 100 students was taken to estimate the mean monthly rent paid by the whole student population. What is the probability that the sam..
Perform hypothesis testing on one variable's data (choose either the intrinsic or extrinsic Job Satisfaction)using 25 as our data set number.
You want to prove that a population mean is not 7. Data is ratio and a large sample size will be used (n = 225). When the sample is done the sample mean is computed to be 7.2 and the sample standard deviation is 1.5.
How to do multiple regression using Excel and the Megastat plugin. Students are given step-by-step instructions on how to use the MegaStat plugin for Excel and told why Excel's Data Analysis Toolpak isn't reliable for rigorous statistical analysis..
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