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Molly s college offers two sections of Statistics 101. From what she has heard about the two professors listed, Molly estimates that her chances of passing the course are 0.80 if she gets Professor Scedastic and 0.60 if she gets Professor Kurtosis. The registrar uses a lottery to randomly assign the 120 enrolled students based on the number of available seats in each class. There are 70 seats in Professor Scedastic s class and 50 in Professor Kurtosis s class.
a) What's the probability that Molly will pass Statistics?
b) At the end of the semester, we find out that Molly failed. What's the probability that she got Professor Kurtosis?
(a) At the 5 percent level of significance, does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket? State your hypotheses and decision rule. (b) Is this a close decision?
two students were asked to rate six different television shows on a scale from 1 to 10 points with higher values
Some Linux distributions are set up so that a root userid is not created during the installation process. In such cases, your regular password serves as the superuser password. Why would a distribution be set up in this way? What are the advantage..
Marital Status. The probability that a randomly chosen 40-year-old woman is divorced is about 0.15. this probability is a long-run proportion based on all the millions of women aged 40.
If the Corporation sells the cameras at a price of $60 each, how many cameras at the minimum it must produce in order to avoid loss
in a particular occupation a random sample of 210 men found that 65 smoked. in a random sample of 240 women 87 smoke.
in a sample of 1000 people 540 are in favor of candidate a and the rest are in favor of candidate b. find the 95
Your task is to predict the output variable "choice" based on 16 input features: x1, x2, ....,x15, x16.The output "choice" is a categorical variable that can take 5 possible values: "M", "B", "J", P", and "O".The first 8 input features (x1, x2, ....,..
according to a recent research report the average monthly household mobile phone bill is 73. suppose monthly household
A student must choose one of the subjects, art, geology, or psychology, as an elective. She is equally likely to choose art or psychology and twice as likely to choose geology.
Using the appropriate statistical table, what is the most accurate statement we can make about the p-value for the test? Construct and interpret the 95% confidence interval for the difference between the population means.
directional and nondirectional hypotheses can be easily interchanged according to the hypothesis the researcher is
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