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0.71 of all college students like the idea of a new curriculum. If we select 90 students (ASSUME INDEPENDENCE), what is the Standard Deviation of the Probability Distribution that would list the number of students (from 0 to 90) and the probability of each.
Write the example of statistics in news to explain the following statement which represents one of the objectives of statistics analysis: "Statistics assists us make decisions.
Government or organization whose effectis to prevent specific from reaching equilibrium. What evidence of excess supply or excess demand can you cite in these examples?
The following table shows SAT scores (on the old SAT with only two sections) for a sample of students. Give the equation of the least squares regression equation.
Is the probability of the discharged of a patients needing carebeing depandent on their gender? Comment on your result. If u know patient is delayed, what is the probability that they are female?
the finished subassembly 2 must be inspected. A list of activities, their predecessors, and their durations. Draw a project diagram (network) for this project? What is the total project time?
Compute a Pearson's correlation coefficient for these data and determine whether the correlation is significant.
During the past six months, 73.2% of US households purchased sugar. Assume that these expenditures are approximately normally distributed with a mean of $8.22 and a standard deviation of $1.10. 80% of the households spent more than what amount?
How should he go about taking samples to gather data for testing the hypotheses?
A cola dispensing machine is set to depense 9 ounces per cup with a standard deviation of .5 oz .THe manufacturer would like to set the control limits so that for samples of 16,
Four different paints are advertised as having the same drying time. To check the manufacturer's claims, five samples were tested for each of the paints.
What statistical procedure was used to analyze data in study B, how many groups were compared in study B, how many subjects were enrolled in Study C and which study demonstrated the greatest level of statistical significance?
For each of the following three scenarios, state which hypothesis test you would use from among the four introduced so far: the z test, the single-sample t test, the paired-samples t test, and the independent-samples t test.
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