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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.
A drainage system overows into a river causing pollution when the rainfall falling in an hour exceeds 50 mm. During any given year, the maximum hourly rainfall follows an exponenti
#quHOW TO MAKE ASSIGMENT ON MEDIANestion..
1) Working in your groups analyse the organisation of information that the Facebook social networking site potentially uses. 2) Suggest the organisation of information and data
how to reconcile bank statement
In a quaternaryphase shift keying (QPSK) communications system, one of four equally probable symbols s0,...,s3 is transmitted in T seconds. If symbol si is sent, a waveform x(t,si)
Toyota Motors introduced a hybrid car Hybrid G in the U.S. market in 2006. In the first three years, the sales of Hybrid G were strong due to the buzz surrounding the hybrid car co
A scientist claims that the mean incubation period for the eggs of a species of birds is more than 46 days.
Question: (a) Packs of food have weights that are distributed with standard deviation 2.3 g. A random sample of 200 packets is taken. The mean weight of this sample is found t
Model 1: Let's consider the logistic regression model, which we will refer to as Model 1, given by log(pi / [1-pi]) = 0.25 + 0.32*X1 + 0.70*X2 + 0.50*X3
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