Distribution of annual costs
For the most current year available, the mean annual cost to attend private university in United States was $26,889. Suppose the distribution of annual costs follows the normal probability distribution and the standard deviation is $4,500.
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For most recent year available, the mean annual cost to attend a private university in the United States was $26,889. Assume the distribution of annual costs follows the normal probability distribution and the standard deviation is $4,500.
Find out out the sample proportion, p, of households with cellular telephones that can be used to access the internet. If the population proportion is .75, determine the standard error of the proportion.
If possible, employ the normal distribution to approximate the sampling distribution of the proportion. Complete parts (a) through (g).
An electronics gadget company has currently created the new line of fitness devices that monitor an individual's activity throughout the day. The lifetime of the device is distributed exponentially with an expected life time of 430 days. Once acti
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