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linda lechner is in charge of maintaining hospital supplies at general hospital. duing the past year the mean lead time demand for bandage BX-5 was 60. Furthermore, the standard deviation was 7. Linda would like to maintain a 90% service level. what safety stock level do you recommend for BX-5?
Be able to conduct a one-tailed hypothesis test for the mean at the .025 significance level. State the null and alternative. State the critical value. Draw a diagram. Provide the computation of the test statistics. State your decision in terms of ..
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
Describe a where you might want to use a dummy variable in a multiple regression. What would the dummy variable buy you in that situation?
If there are 5 choices for a question and there is a 50% chance that the student knows the answer, what is the probability that the student knew the answer to a question he correctly answered?
What is the probability that a cereal would be high calorie, given that is low fiber? In other words, what is P (high calorie, given low fiber)?
Assume that the process is in control and that the population of all jar fills is normally distributed. (Round the z-values to 2 decimal places and final answer to 4 decimal places. Negative amounts should be indicated by a minus sign.)
The New York City Housing and Vacancy Survey showed a total of 59,324 rent-controlled housing units and 236,263 rent-stabilized units built in 194 or later.
Looking at the data, the manufacturer is incorrect in its label claim. Perform hypothesis testing to prove or disprove it. Is the manufacturer correct in its label claim? Explain.
One person's file is chosen at random. Find out probability that selected person will fall into following categories. Book keeping.
Find the percentage of the total variation that cant explained by the linear relationship between the two variable.
Determine the point estimate? Give the symbol and value.
This model is fit to the data using the method of least squares using statistical software, and the following parameter estimates and their standard errors are obtained.
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