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A student believes that no more than 25% (i.e., 25%) of the students who finish a statistics course get an A. A random sample of 100 students was taken. Twenty-six percent of the students in the sample received A's. Test the hypotheses at the 5% level of significance. What is the critical value? What is the calculated Z-test statistic? What are your conclusions regarding the assumption of the proportion of students that make an A in statistics? reject or not reject
Give an example of a hypothesis test you could perform at a Surgery Center and what the hypotheses would be. State the null and alternative hypotheses in proper format.
What is the maximum error of estimate for p ?
Explain the difference between testing a single mean and testing the difference between two means. What two assumptions must be met when one is using z test to test differences between two means?
Assume a linear relationship, use the least square method to find the regression coefficients bo and b1 and Predict the mean kilowatt usage when the average temperature is 50 degrees Fahrenheit.
The Institute for Operations Research and the Management Sciences
A "random survey" was conducted of 3274 people of the "microprocessor generation" (people born since 1971, the year the microprocessor were invented). It was reported that 48% of those
75% of students live in dormitories. A random sample of 5 students is selected. Using the binomial probability tables, find the probability that none of the students lives in the dormitories?
an anova table for multiple regression has the required information to compute the coefficient of multiple
This is my own made up problem. I just want to learn which test would I use t,z, or Chi and HOW do I go about doing it.
Determine the conditions under which you would use a discrete probability distribution rather than a continuous probability distribution. Provide one (1) example to illustrate your reasoning.
professor green gives two-month computer programming courses during the summer term. students must pass a number of
a university system enrolling hundreds of thousands of students is considering a change in the way students pay for
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