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A. Simulate 50 observations from a normal distribution with mean 0 and standard deviation 1. make a normal plot.
b. Repeat the simulation of (a) but use an exponential distribution with mean = 1 how does the shape of the plot compare to the plot using normal data?
c. Repeat the simulation in (a) but use a uniform distribution on [0, 1]. How does the shape of the plot compare to the plot using normal data?
Use the method of least squares to model the relationship between x and y.
A firm has tendered for two independent contracts. It estimates that it has probability 0.4 of obtaining contract A, and probability 0.1 of obtaining contract B. Find the probability that the firm:
Use PHStat to make a box-whisker plot. If PHSTAT has yet to be installed, calculate Xmin, Xmax, Q 1 , Q 3 and median using equation in Class Notes-Quartiles, Percentile & Dectiles.
Where does the p-value come from for the spatial scan statistic used in SaTScan? Explain how Monte Carlo simulation is used to derive a p-value for a cluster.
The manufacturer of a coffee dispensing machine claims the ounces per cup is normally distributed with population mean equal to 8 ounces and standard deviation equal to 0.9 ounces. If 50 cups of coffee were measured, what is the possibility that- ..
Explain your answer to someone who is familiar with the t test for a single sample, but not with the t test for independent means.
These individuals are then examined and categorized as to whether they have a heart disorder. The observed frequencies are as follows:
A random sample of 36 days yielded the average daily output of 890.2 tons, with standard deviation of 19.8 tons. Use this information to make a 95% confidence interval for mean.
How does bell-shaped curve for sampling distribution of sample means for samples of size n =120 compare tobell-shaped curve for sampling distribution of sample means for samples of size n =95?
The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast
Transportation problem using the stepping stone method
Find the range, standard deviation, and variance for the scores.
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