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1. The company believes that it averages about the same weight per bag in each of two production lines. To test this idea, they will perform a hypothesis test to compare the two lines at the alpha level of 0.05. State the null and alternative hypotheses:
2. If the test calculates a sample Z of 1.69, what is the corresponding p value?
3. If we have two samples, one with a mean of 20.5 and standard deviation of 0.91 and one with a mean of 22.4 and standard deviation of 0.32, what might we be able to tell about these two samples and how would we test it? What else might we need to know?
Normal adult Mean Temperature is 98.2 and standard deviant is 0.62 with normal distribution. If 16 people are randomly selected determine the probability that their mean body temp is below 98.5 degrees.
Randomly selected cans of Coke are measured for the amount of cola in ounces. The sample values listed below have a mean of 12.19 ounces and a standard deviation of 0.11 ounces. Use a 0.05 significance level to test the claim that cans of coke hav..
Describe what happens when the sample standard deviations get larger and repeat Part a with samples of size 150.
Show that the MACRS system is more beneficial economically. Use a 5-year tax life. The corporate MARR is 10%, and the tax rate is 34.
Interpreting confidence interval for the P-value. Give an appropriated response. A weight loss center provided a loss for 72% of its participants.
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
Perform hypothesis testing on one variable's data.
Employees what is the mean and standard deviation for the expected number of employees making more than $70,000 per year #question.
The sample mean of the number of spots on the 6000 rolls, should be about If this die is rolled 6000 times, the number of times we get a 2 or a 3 should be about
Take a random sample and perform a t-test against a population mean (no time series for any parts of this project.) Test a hypothesis about a population mean.
Construct a scatter plot of P-RFM and P-HELM. If drawing the plot by hand, use graph paper to ensure accuracy.
1.suppose x is a continuous random variable taking values between 0 and 1 and having a probability distribution
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