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Determine the analysis and state the null and alternate hypothesis.
Determine what analysis would you do on each problem (i.e., one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)? Then state the null and alternative hypothesis for a problem.
Suppose you have developed a new program to stop teens from smoking. You try out the program on high school seniors and then find out how many of them started to smoke. You believe that the proportion of students smoking will be less than the current value of 23.
If the standard deviation is $89.46, find the probability that a randomly selected customer spends between $550.67 and $836.94.
What is Excel formula in B9 giving first value of coefficient in the objective function?
Create a scatter plot for those data. Based on scatter plot, how would you explain relationship between the two variable.
An independent financial advisor claims an average rate of return, μ, on a particular investment is at least 7%. In testing her claim, the correct pair of hypotheses is:
The Type 1 error states the probability of being wrong whenever:
See if there is a difference in their means and variances.
If sensitivity and specificity remain constant, determine the relationship of prevalence to predictive value positive and predictive value negative?
Evaluate the probability that patient taking drug will experience flu symptoms.
Determine the probability that she lives in an all electric home?
She then selects a sample of 102 football players and finds that their average math SAT is 460. Use alpha =.01 to perform the appropriate hypothesis test.
Find the standard error of the difference in sample means,
Write a one-page report to Ms. Gupta presenting your conclusions regarding the market performance of Brand 1.
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