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543 people were selected at random from a large population. 505 of them said they had the Internet installed on their home computers.
Find the sample proportion of people who had the Internet on their home computers
Find the 99% confidence interval for the population proportion of people who had the Internet on their home computers.
In a batch of 8,000 clock radios 9% are defective. A sample of 15 clock radios is randomly selected without replacement from the 8,000 and tested.
Find the area under the normal distribution curve to the right of z = -1.03.
The following data provided by a coffee company are the roast time in minutes for five batches of coffee (x) and the resulting shrinkage in percent of the coffee weight(y).
water samples from a particular site demonstrate a mean coliform level of 10 organisms per liter with standard
Discuss how accurate you believe these results are using information related the regression models.
If the voice identifications were made by random guess, find the probability that all 9 victims would select the same person?
a random sample of 16 google managers yields the following information on annual salaries. the sample mean is 69000
Discuss the concept of 'extended family' with Asian and Latino ethnic minorities. Discuss the strengths and weaknesses regarding delivery of social and health services to these groups.
A produce manager wants to estimate the mean size of coke bottle fills with 95 percent confidence. A preliminary sample of 12 bottles shows a sample standard deviation of 3 mil, and mean of 500.
Examine the relationship between final grade and the reported hours per week each student said they studied for the course. Do we have evidence that females are being discriminated against?
Find a value of p such that when 10,000 bits are received, the expected number of errors is at most 10 and using this value of p what is the probability of no errors? Of at least 1? of at least 10?
the teacher ratio is 125. currently the school district has 3150 students. if the student enrollment increases by 20
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