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There are 7 guards and 6 centers trying out for the starting 5 in a basketball team with specific positions. Find the number of ways to select the starting 5 and put them into their positions.
The probability that average amount of purchase per weekend from Sam's sample is greater than average amount of purchase per weekend from Katie's sample =
it is decided to measure the resistance of sheets of a certain metal at temperatures x of 100 k 200 k 300 k 400 k and
Find the value of t α/2 and n = 18 for the 99% confidence interval .B. find the value of t α/2 and n = 15 for the 98% confidence interval.
If the population standard deviation is known to be 7.5 hours, can we conclude at the 5% significance level that he is right?
Simple random sample of 100 elements is taken: (a) What is the chance of an element being included in the sample? (b) What is this chance called (hint: not probability)?
What proportion of the first 70 digits in the table are 0s (there are 40 digits in line 101 followed by the first 30 in line 102)?
Suppose we analyzed the effect of grade point averages on grades in a specific class and found the results to have an R-aquared value of 0.53. What do we know? Are there other factor, neith or fifty three percent of the variability?
a distribution of scores has mu 40 and sigma 18a. describe the distribution of sample means based on samples of n36
suppose you fit the first order multiple regression model y b0 b1x1 b2x2 eto n 25 data points and obtain the
For a normal random variable X with mean 70 and standard deviation 10. Calculate the probability that 60 80}.
A carpet company advertises that it will deliver your carpet within 15 days of purchase. A sample of 49 past customers is taken. The average delivery time in the sample was 16.2 days.
State the decision rule? (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.)
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