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The capacity (bits) of the largest DRAM (dynamic random access memory) chips commonly available at retail has increased as follows:
(a) Make a scatterplot of the data. Growth is much faster than linear.
(b) Plot the logarithm of DRAM capacity against year. These points are close to a straight line.
a group of statistics students decided to conduct a survey at their university to find the average mean amount of time
What is the distribution of X? State its mean and variance.
assuming that the population is normally distributed construct a 95 confidence interval for the population mean based
An electric power trading company has an option to buy 1,000,000 terawatts of electricity from a producer for $10 per terawatt. Other electric power trading companies have received this option and the company knows a decision must be made quickly.
provide a numerical answer to each of the following questions and also show the calculations you used to find the
determine whether the following statement is true or false and explain briey if a simple random sample is taken from a
part i statistical measures statistics is a very powerful topic that is used on a daily basis in many situations. for
What is the probability that the investment property selected is worth less than $400,000 and what is the probability that the investment property selected is worth between $450,000 and $600,000?
A high school counselor is interested in the percentage of students who will be going to college. She randomly picks 60 students and finds that 53 will be going to college. Use a 95% confidence level to find the population proportion.
Assume that samples of size 2 are randomly selected with replacement from this population of four values. The first samples selected is 11,9. What is the mean of the sampling distribution of means?
the number of traffic accidents that occur on a particular stretch of road during a month has a distribution with mean
Do these data support the claim made by some female managers within the organizations? Report and interpret the p-value.
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