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Consider the following data points: (36, 88), (67.25, 224.7), (93, 365.3), (141.75, 687), and(483.8, 4332.1). (This was the data Kepler had when he was trying to find a relationship between the distance, in millions of miles, of a planet from the sun and the time, in days, it takes for that planet to goonce around the sun.) Rather than fit a line y = b + mx to these data points (xi, yi), fit a line to the points(log xi, log yi). Use your fitted line to guess a simple relationship between x and y. (In many applicationsto science and social science, data is transformed before regression is employed. The most commonly usedtransformations are power transformations and logarithmic transformations.)
Between 180 and 230 (inclusive) of the drivers in the sample regularly wear a seatbelt? Hint: Use the BINOMDIST function in Excel.
If Taco Bell costs $3 and a home lunch costs $1 and the Springdale room is free, then how much lunch budget should he allow for his semester, which includes 100 lunches?
bcs quality assurance programme chooses a random sample of 50 units and finds that 12 are defective. what is the number
in a random sample of 5 parts on an assembly line the probability that one of the parts is a defect is 15 and follows a
the quarterly returns of a group of 53 mutual fund with the mean of 3.7 and standard deviation of 5.9 can be modeled by
Suppose that verbal scores on SAT exam have a normal distribution with a population mean 500 points and population standard deviation of 100.
How much should the financial manager of this office complex budget for energy costs for each quarter of 2012, based on seasonally adjusted trend estimates?
Prepare a treatment means plot and determine whether the two factors interact. How can you tell that interactions are present? Are the interactions important or unimportant
At the .02 significance level can we conclude that the mean time to correcting a shipment is less than 10 minutes? Do the following: Compute the value of the test statistic.
a population has a standard deviation of o 24.a. on average how much difference should exist between the population
In the proof of Theorem 2 we determined the quantity E[X(X - 1)], called the second factorial moment. In general, the rth factorial moment of X is given by
use the normal distribution of sat critical reading scores for which the mean is 507 and the standard deviation is 114.
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