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Davy Jones owns and operates a chain of grocery stores called "Groceries for less" He is considering a new computer system for accounting and inventory control. A local computer sales office sent the following information about the computer system installation.
Activity Predecessor Duration (wks)a. select the computer model - 6b. design input/output system a 8c. design monitoring system a 8d. assemble computer hardware b 20e. develop the main programs b 18f. develop input/output routines c 10g. create database e 8h. intall system d,f 2I. test and implement g,h 7
a. Construct a network for this problemb. identify the critical path by computing the ET, LT, TS and FS valuesc. Determine project completion time.
A coin was flipped 60 times and came up heads 36 times. Determine the critical value you would use to test whether proportion of heads is greater than 0.50 at 10% level of significance?
There are three nursing positions to be filled at Lilly Hospital. Position one is the day nursing supervisor; position two is the night nursing supervisor; and position three is the nursing coordinator position.
A two-way ANOVA model was used to analyze an experiment with two levels of one factor, three levels of a second factor, and 6 observations per treatment combination.
With the sample standard deviation of 12 lbs. Determine the 90% confidence interval of true mean weight of all college wrestlers.
Some researchers have conjectured that stem-pitting disease in peach tree seedlings might be controlled with weed and soil treatment. An experiment was conducted to compare peach tree seedling growth with soil and weeds treated with one of two her..
Recognize the given samples are independent samples or matched pairs.
Heights of men on a baseball team has a bell-shape distribution with a means of 173 cm and a standard deviation of 9 cm. Using the empirical, rule what is the approximate percentage of the men between the following values?
For a lottery to be successful, the public must have con dence in its fairness. One of the lotteries in Maryland is Pick-3 Lottery. Write down the test statistic to be used for testing the hypothesis.
Sketch the areas under the standard normal curve over the indicated intervals, and find the specified areas.
Calculate and plot t he new supply schedule and indicate the new equilibrium price and quantity on your diagram
An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of two emails per hour. Suppose the arrival of these emails is approximated by the Poisson distribution.
Decide whether experiment is binomial, Poisson or neither based on info given. Each week man plays game in which he has a 21% chance of winning.
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