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There are many reasons why sales are not completed; sometimes it is due to variables beyond the control of the salesperson, but often it's due to a failure to gain commitment. Why--after investing all the time and effort in prospecting, qualifying, and making the presentation--would a salesperson not attempt to gain commitment from the buyer?
Directions:
From these statistics she calculates a 90% confidence interval of [20.9 grams, 25.1 grams]. What can the researcher do to decrease the width of the confidence interval?
Use these data to obtain a 90% confidence interval estimate for the mean starting monthly salary, µ, of all recent graduates with bachelor's degrees in marketing from this university.
Will the margin of error for estimating the population proportion change from state to state if an SRS of 4000 tax returns is selected in each state?
Suppose that B1, B2,......... ω ∈ Ω is a sequence of independent events such that for all i, P[Bi] = 1/2. Show that for any n ≥ 1 and for any ω ∈ Ω, we haveP[{ω}] ≤ 1/2n
The following data from a sample of 100 families show the record of college attendance by fathers and their oldest sons: in 22 families, both father and son attended college; in 31 families, neither father nor son attended college; in 12 families,..
when circuit boards used in the manufacture of compact disc players are tested the long-run percentage of defectives is
a. A firm uses a computer-based training module to prepare 20 machinist to use new numerically controlled lathes. The module contains a test at the end of the course; X is the number who perform satisfactorily on the test.
In a large western university, 15% of the students are graduate students. If a random sample of 20 students is selected, what is the probability that the sample contains:
What fraction of cups will probably overflow if 230-milliliter cups are used for the next 1000 drinks? 0.0228 or 23 out of the 1000 drinks will overflow.
Find the probability that it has a defective bulb or defective battery, a good bulb or good battery,a good bulb and good battery.
you are conducting a study to see if students do better when they study all at once or in intervals. one group of 12
2800 people were surveyed about their recent purchases. 715 of those people surveyed bought a television within the last year, 461 bought a video game system within the last year, and 292 bought both.
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