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Tickets
A delivery company s trucks occasionally get parking tickets, and based on past experience, the company plans that the trucks will average 1.3 tickets a month, with a standard deviation of 0.7 tickets.
a) If they have 18 trucks, what are the mean and standard deviation of the total number of parking tickets the company will have to pay this month?
b) What assumption did you make in answering this question?
a lottery offers one 1000 prize one 500 prize five 100 prizes and ten 10 prizes one thousand tickets are sold. what
Total housing costs as a percent of monthly income, five years ago and now. The information is reported below. Is it reasonable to conclude the percent is less now than five years ago?
a survey found that womens heights are normally distributed with a mean 63.4 in and a standard deviation 2.5 in. a
Provide an example of how an ANOVA could expand on the results of a t-test. In other words, think of an example (related to the field of psychology) in which you could use a t-test, and then note how the comparison could change if an ANOVA was use..
The table below lists the number of audience impressions (in hundreds of millions) listening to songs and the corresponding numbers of albums sold (in hundreds of thousands).
five years ago the standard deviation of the ages of the undergraduate business students was 1.5 years. recently a
Determine the least squares equation. On the basis of this information, what are the estimated sales for 2005?
a bag contains 10 red marbles 5 yellow marbles and 7 green marbles. if one marble is randomly picked from the bag what
Aircraft are used to sow seed and to spread fertilizer.
A survey found that 85% of women in a given city enjoy shopping online. Suppose you randomly selected 6 women from the city and ask them whether or not they enjoy shopping online. Find the probability that exactly 4 say they enjoy shopping online.
In a sample of 41 business trips taken by employees in the HR department, a company finds that the average amount spent for the trips was $1,462 with a standard deviation of $530.
Define irregular component in time series and explain the differences between other components as well as its effects.
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