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Question 1:
A mail-order firm has a circular which elicits a 10% response rate. Suppose 20 of the circulars are mailed as a market test in a new geographic area. Assuming that the 10% response rate is applicable in the new area, determine the probability that
(i) no one responds,
(ii) exactly two people respond,
(iii) less than 20% of the people respond.
Question 2:
The packaging process in a breakfast cereal company has been adjusted so that an average of 13.0 oz of cereal is placed in each package. Of course, not all packages have precisely 13.0 oz because of random sources of variability. The standard deviation of the actual net weight is 0.1 oz and the distribution of weights is known to follow the normal probability distribution.
(i) What is the probability that the weight of the cereal will exceed 13.25 oz?
(ii) Evaluate the probability that a randomly chosen package will contain between 13.0 and 13.2 oz of cereal.
purpose?
CBT has agreed to finance the needs of a stereo wholesaler for the next month. To complete the loan agreement, the wholesaler must estimate the cash on hand during the first 90 day
Costs or expenses that connect with the appropriate identification requirements of the finance type engaged but have not been compensated. Acquired expenses are required to be comp
#multiple linear regression of y on x1 & x2 from data relating to 3 variables i.e y=4,6,77,9,13,15 x1=15,12,8,6,4,8 x2=30,24,20,14,10,4
It is a numerical average, as equal to the sum of terms in a given series divided by the number of terms in that series is the mean which is also called the expected value.
1. It is often a good idea to start by visualizing the data. Time series data should have "time" on the horizontal axis. What are you going to have on the vertical axis? If you use
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). Calculate Karl Pearson’s coefficient of correlation from the following data , using 20 as the working mean for price and 70 as the working mean for demand: Price: 14 16 17 18 1
Cash equivalent Short-term: highly liquid investments that are together [1) readily convertible to known amounts of cash & [2) so close to their maturity that they there insignifi
i) For a 3 term averagin filter, write a difference eqatuon governing the filter and dervie the corresponding z transform Sketch a pole zero plot, would this filter be stable, why
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