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25 groups with 7 people in each group, join "The Greatest Loser" competition. Based on the greatest percent of weight loss, the greatest loser wins. Calculations regarding percentages are made by taking the total weight of the group and dividing by 7. Weignts are measured initially and after 9 weeks.
A new group comes along and that only has 5 people. Their weights are also measured initially and after 9 weeks. What would be the most accurate methodology for determining the percentage of weight loss for this new group?
The following data show the cost of electricity during August 2010 for a random sample of 50 one-bedroom apartments in a large city:
You are planning to test a vaccine for a virus that has no vaccine. Since the disease is usually not serious, you will expose 100 volunteers to the virus. After some time, you will record whether or not each volunteer has been infected.
What is the probability of selecting a value at random and discovering that it has a value of less than 395 pounds?
What contingency table test is used to see if there is a difference in the frequency distribution for two different groups?
What is the probability that all tree students pick a different card?
Can we conclude that there is a positive association between the size of the home and the selling price? Use the .05 significance level.
If probability the first truck is available is= .75, probability the second truck is available is= .50, and probability both are available is= .30, determine the probability which neither truck is available?
A large internet retailer is studying the lead time (elapsed time between the time when the order is placed and the time it is filed). The table below gives the lead times (in days) for a random sample of recent orders.
Find out the range (R), variance (V) and standard deviation (s) for the given set of values:
There are 20 qualified applicants for 5 trainee positions in a fast-food management program. How many different groups of trainees can be selected?
Use either Linear Programming module or Transportation module of Cd to minimize the shipping costs involved in move.
Statewide real estate sales agency, Farm Associates, specializes in selling farm property in state of Nebraska. At.10 significance level, has there been an increase in selling time?
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