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You have three pieces of string with lengths of 42 inches, 63 inches, and 77 inches. you need to cut pieces of equal length from these three pieces of string. How long should each piece be, and how many pieces can you get from each length of string?
Perform a test to determine whether there is sufficient evidence to support a claim of a linear correlation between two variables. Find the critical values of r given the number of pairs of data n and the significance level alpha.
Use the normal distribution of SAT critical reading scores for which the mean is 507 and the standard deviation is 121. Assume the variable x is normally distributed.
Please identify a research question that can be addressed with a hypothesis test. An example might be to identify the presence of bacteria in a batch of milk.
what is the expected number of claims by males under 25? what is the standard deviation of the distribution. (How to show on excel using binodist formula).
Identify the point estimate of the average number of available hotel rooms in this lesson from each sample. Construct and Interpret a 95% confidence level for the true mean number of available hotel rooms, based on the point estimate of each sampl..
1.an experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield.
What is the probability that a respondent said neither the Big Ten nor the Pac-10 would have a team in the Rose Bowl?
Your friend tells you that the proportion of active Major League Baseball players who have a batting average greater than .300 is greater than 0.56, a claim you would like to test. The hypotheses for this test are Null Hypothesis: p ≤ 0.56, Altern..
f no more than 5% of the containers are to weigh less than 15.8 oz, what must the standard deviation of the weights equal?
10% of the north district students failed, 15% of the south district students failed, and 5% of the central district students failed. Develop a joint probability table.
Assume that 80% of the adult population in the United States has tasted either Coke or Pepsi. For a sample of 250 adults, How many would you expect to have tasted either Coke or Pepsi? Whats the variance?
The amounts spent in vending machines in the United States, in billions of dollars, for the years 1999 through 2003 are given below. Determine the least squares trend equation.
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