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Apple's market share in the smart phone market represents a proportion of 0.1835. If Apple conducts a survey nationwide of 641 smart phone users, what is the probability that greater than 127 of the people are Apple users?
Show how to get the answer on a Ti-84 calculator please.
Currently have to wait on line before the technician is able to answer their call. What is the average waiting time in the queue (in hours) before the technician answers a customer's call?
by the central limit theorem the sampling distribution of x1 - x2 isa. approximately normal for small samplesb.
Write the null and alternative hypotheses for testing if participants and non-participants differ in level of problem behavior (Y).
A study of 100 sedentary people in this age group is planned to test whether they have a higher or lower level of plasma glucose then the general population.
a pysics lab instructor wants to estimate the time required for physic students to complete a required experiment. from
At the .01 significance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
Researcher expects 12 point treatment effect and plans to use two-tailed hypothesis test with u α = .05. Calculate the power of test if researcher uses a sample of n = 16 individuals.
The results of a survey for an airline are shown below. Use the chart to find the probability that the traveler was
question suppose we analyzed the effect of grade point averages on grades in a specific class and found the results to
A State University uses thousands of fluorescent light bulbs each year. The brand of bulb it currently uses has a mean life of 900 hours. A manufacturer claims that its new brands of bulbs
suppose a group of 900 smokers who all wanted to give up smoking were randomly assigned to receive an antidepressant
the following are the hours of operation to failure of 38 light bulbs.150 389 345 310 20 310 175 376 334 340 332 331
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