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When sampling is done for the proportion of defective items in a large shipment, where the population proportion is 0.18 and the sample size is 200, what is the probability that the sample proportion will be at least 0.20?
Compute standard error of mean? Compute the margin of error, with 95% confidence.
a test consists of 10 true or false questions. to pass the test a student must answer at least eight questions
Of 300 business students, 100 are currently enrolled in accounting and 80 are currently enrolled in business statistics. These enrollment figures include 30 students who are in fact enrolled in both courses.
A study finds that during blizzards, online sales are highly associated with the number of snow plows on the road; the more plows, the more online purchases. The director of an association of online merchants suggests that the organization should ..
best sleep and furniture company wishes to study the number of credit applications received per day. the information is
Nationwide, the average time until a electric utility customer service representative answers a call is 260 second. The Gigantic Kilowatt Energy Company randomly sampled 30 calls and found that, on average, they were answered in 227 second with a ..
the administrator of a new paralegal program at seagate technical college wants to estimate the grade point average in
The volume of milk in a jug of milk is 128 oz. The value 128 is from a discrete data set.
Physician A believed 15 patients received magnesium as opposed to placebo. Physician B believed 20 patients received magnesium as opposed to placebo. They both agreed on 9 patient cases having received magnesium as opposed to placebo. What is the ..
Describe the goal of an experimental research study and identify the two elements that are necessary for an experiment to achieve its goal.
samples of our students from an applied experimental design class were polled regarding the number of hours they spent
An order for 5 pizzas has just been place. What is the minimum number of pizzas that must be made in order to be at least 99% sure that there will be 5 that are edible?
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