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For a one-tailed hypothesis test where you reject H0 only in the lower tail, the critical value is -2.5280. What is the statistical decision if tSTAT = -1.19?
a researcher has a report for an experiment with a sample size equal to 100 the resulting 95 prediction interval was
a survey is taken in which 40 randomly selected respondents aged 25-40 are asked how many biological children they
question a manufacturer must decide whether to extend credit to a retailer who would like to open an account with the
Critically discuss the characteristics of integer programming problems. Provide specific instances in which you would use an integer programming model rather than an LP model. Provide real-world examples.
What portion of the variability in profit margin is explained by variability in the independent variables? Is the estimated regression equation a good fit for explaining profit margin?
The probability that a bomber hits a target on a bombing mission is 0.700. Three bombers are sent to bomb a particular target.
A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40. Compute the probability that the sample mean is Between 74 and 76.
find the 95 confidence interval for the difference between two means based on this information about two samples.
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.
T-scores are used on some psychological tests, such as the MMPI. T-scores have a mean of 50 and a standard deviation of 10, and therefore a z-score of -1 (one standard deviation below the mean) would be converted to a T-score of 40.
question suppose that x xijnx2 is an observed data matrix from a bivariate normal distribution nmusigma2i where i is
a simple random sample of 50 adults is obtained and each persons red blood cell count is measured. the sample mean is
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