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The following data represent the afternoon high temperatures for 50 construction days during a year in St. Louis,
42 70 64 47 66 69 73 38 48 2555 85 10 24 45 31 62 47 63 8416 40 81 15 35 17 40 36 44 1738 79 35 36 23 64 75 53 31 6031 38 52 16 81 12 61 43 30 33
Identify the variable being measured and describe the sample as it relates to the population.
Can we conclude a difference in voting patterns for men vs. women? YES or NO (circle one)
In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken.
Create one table that calculates summary measures of the change in test scores and income variables across all 80 schools.
Fitting of simple linear regression equation - Given the student population for a school district over the past few years, find the prediction equation for this data.
The following data were obtained from an independent measures research study comparing three treatment conditions. Use an ANOVA with alpha=.05 to determine whether there are any significant mean differences among the treatments.
A research analyst regresses the number of calls for service (Y) on the Fahrenheit temperature at 4:00 in the afternoon (X). The regression equation finds: Y = 62 + 2.4 X with an r 2 of .67
How can you answer the dual simplex question with maximization objective function and also explain difference between m tecnique and two phase method?
A sample of 64 Atlanta consumers showed a mean quarterly water bill of $51 with a sample standard deviation of $12. At α = .05, does the Atlanta sample support the conclusion that above-average rates exist for this private water system?
Given 7 male individuals in a Physical Education course, the number of sit ups each individual can do in a one minute period was recorded:
The American Automobile Association checks the prices of gasoline before many holiday weekends. Listed below are the self-service prices for a sample of 15 retail outlets during the May 2003 Memorial Day weekend in the Detroit
At the 5% level of significance test whether the bottling process is carried out accurately or whether the filling machinery needs calibration. Use both the critical and the p-value approaches.
Let X be the number of tumors in a fish living in a river. Suppose that it has the following probability mass function f(0) = 0.9 f(1) = 0.7 f(2) = 0.02 f(3) = 0.01 A random sample of size n = 30 is selected from this population. Approximate the p..
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