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There are 137 tickets in a hat and my name is on 3 of them. If someone draws 20 tickets out of the hat, what is the probability of my name being on one of those 20 tickets.
In the sample of 80 students, 9 were found to be overweight. At a= 0.01, is there adequate evidence to reject claim using critical values?
Assume that respondents had been asked for party affiliation in a poll. THe responses were coded as 0 (for democra), 1 (for republican), 2 (for independent), or 3 (for any other response).
A population of data from a paper supply company is known to have a mean weight of 55 ounces per ream and a population standard deviation of 5 ounces. The population is known to be bell shaped and symmetrical.
The standard deviation was 2. At α = .10, is the number of years' experience of the taxi drivers really less than the taxi company claimed?
Describe the factors that might cause variation in weight of Tootsie Rolls during manufacture.
What is the probability that a randomly-selected truck travels between 30 and 60 thousand kilometres in one year. Standard deviation of 12.0 thousand kilometres.
Why is statistical significance not necessarily of practical important difference to a business decision? Give an example and explain.
Use confidence interval to determine the estimated margin of error, Then determine the sample mean.
You're operating a business in very competitive market. You're not yet the dominant player, but you have invested heavily in marketing and product development and it has paid off with a steady growth rate of 10%.
Which promises the profit of $24,000 with the probability of .7 or a loss (due to bad weather, strikes, and such) of $8000 with the probability of .3. Determine the expected profit?
Suppose that for a particular flight involving a jumbo-jet with 265 seats, the airline sells 278 tickets. What is the probability that the airline will not have enough seats for all the ticket holders who show for the flight?
Prepare a 10-13-question survey to gather primary data regarding your selected problem statement. Please note that you will not administer this survey as part of this assignment.
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