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Bonnie Rogers, the customer relations manager for a large computer manufacturer, has recently studied the duration of telephone calls received by the company's technical support department. The call lengths are exponentially distributed, with a mean duration of 8 minutes. Experience has taught Bonnie that lengthy calls usually can be more efficiently handled by a technical support manager, rather than by the less experienced personnel who receive the initial technical inquiry.
To avoid having the higher-paid managers virtually take over the task of handling technical support, Bonnie would like to have only the longest 10% of the calls redirected to a technical support manager. How long must a technical support call last before it qualifies for redirection to a technical support manager?
Determine the average number of people you should ask in order to determine someone with same birtheday as yours.
Grace claims, "the probability of rolling a sum of 12 when you roll two dice is 1/11 , because two dice have sums 2 through 12 which means there are 11 possible sums." How do you respond?
The probabilities that a student passes in Mathematics, Physics and Chemistry are m, p and c respectively. Of these subjects, the student has a 75% chance of passing in at least one, a 50% chance of passing in at least two and 40% chance of passin..
State the W s for this study to the extent that the story gives them.- What do you notice about the percentages listed? What does that probably mean?
suppose that an insurance agent offers you a policy that will provide you with a yearly income of 50000 in 30 years.
when evaluating a new process using the square root of the upper end of the confidence interval for ?2 gives an
Conduct a study to examine the relationship between party affiliation and gender. You find the following:
Create a bar chart with an appropriate vertical axis, horizontal axis, and title - what your final chart should look like, although your titles and numbers will be different. Remove my example and insert your own.
A measuring device makes errors with a probability of 0.001 on each measurement. What is the probability of more than 20 errors in 10,000 measurements?
a proportion of a college basketball teams season ticket holders renew their tickets for the next season. let p denote
the stewart aviation products company has been successfully manufacturing aircraft al- timeters with errors normally
c. Describe a different example of where the independent variable, while highly correlated to the dependent variable, does not cause the dependent variable to change directly. d. Discuss the differences and relationship between correlation and dete..
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