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A bagel shop wants to estimate their daily demand for their popular poppy seed bagel. The shop owner determined that the daily demand follows the normal probability model with mean 300 bagels and standard deviation 60.
What is the probability that the number of poppy seed bagels sold on a particular day exceeds 400?
the blood pressure measurements of a single patient were taken by twelve different medical students and the results are
a college graduate school president is interested in knowing what proportion of applicants would like to be accepted
Test the given claim using the traditional method of hypothesis testing.
in february 2008 an organization surveyed 1040 adults aged 18 and older and found that 538 believed they would not have
Management at the Kansas City Corporate office for tax prepration wants to accomplish a business objective by conduting a study of the waiting time in its tax offices in different states.
The quality control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of 8 syringes taken from the batch. Suppose the batch contains 1% defective syringes.
The following table presents data on political party affiliation and class level for sample of students in certain university: If the student is selected at random from sample, determine the probability that student is Republican.
Find the minimum sample size required for estimating the overall proportion of students who passed Exam P in 2009 to within 4% with 95% confidence if it is known that this proportion is between 30% and 40%.
a psychologist is conducting a study in which 30 students attend workshops by the speaking center for one hour per week
Finally, the when large plant is built and the demand happens to be high, the net present value of the profits $800,000. Draw a decision tree.
Compute a 95% confidence interval for the population mean, based on the sample 32, 38, 31, 34, 35, 32, and 36. Change the number from 36 to 14 and recalculate the confidence interval. Using the results, describe the effect of an outlier or extreme..
What was the explanatory variable? The explanatory variable is the number of students taking a first year seminar course for pre-health professional majors.
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