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For the data set shown ?below, how do I find the estimates of β0 and β1 and then compute the standard error, the point estimate for o-.
x 3 4 5 7 8
y 5 7 8 12 13
When calculating a confidence interval for the population mean with a known population standard deviation s describe the effects of the following two changes.
A manufacturer receives a certain component from a supplier in shipments of 100 units. Two units in each shipment are selected at random and tested.
If we are testing O-rings, suppose that the probability of a failure of any one O-ring is 0.01. Let X be the number of failures in the next 10 O-rings tested.
construct a frequency distribution table for these data. what type of graph would be appropriate to show the frequency distribution for these data?
Suppose a consumer group asked 18 consumers to keep a yearly log of their shopping practices and that the following data represent the number of coupons used.
Perform a proper analysis. Describe your null and alternative hypothesis, report the p-value. What is your conclusion?
packets arrive at a router at the rate of 1000 packets per second. in an experiment the number of arriving packets are
Create a 95% confidence interval for mean cost of repairs. Interpret this interval.
The sample mean is 4.1 and the sample standard deviation is 1.4. It can be assumed that the population is normally distributed. The degrees of freedom associated with this are?
in many ways comparing multiple sample means is simply an extension of what we covered last week. just as we had 3
If a survey of 109 randomly selected united states residents is to be taken, what is the approximate probability that at least 60 will be under 31 years of age?
Name recognition. A political candidate runs a weeklong series of TV ads designed to attract public attention to his campaign.
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