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According to a Gallup poll conducted March 5-7, 2001, 52% of American adults think that protecting the environment should be given priority over developing energy supplies is more important, and 6% believe the two are equally important. The rest have no opinion. " Suppose that a a sample of 100 American adults is quizzed on the subject. What is the probability of the following events?
a)50 or more think protecting the environment should be given priority.
b) 30 or fewer think that developing energy supplies is more important.
c) 5 or more have no opinion.
What value is standard deviation for this data? What type of probability is this?
The forecast for the third quarter is 3,000 units; the seasonal index for the quarter is 1.05. What are the seasonally adjusted sales for the quarter?
Determine the sum of these probabilities , and why is the number less than 1
Test hypothesis that average price of gasoline in western states is higher than national average for Continental USA and the District of Columbia, i.e., higher than $3.74.
The random variable xi represents the number of complaints, and p(xi) is the probability of receiving xi complaints.
The data given below represent the annual gross revenue (N'millions) obtained by a telephone company over the periods 1987 - 1996:
The population mean of a company's racing bicycles is 9.07 kg (20.0 lb) with a population standard deviation of 0.40 kg. If the distribution is approximately normal
Give the Z- score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected
You are given following information on residents' responses, broken down by sex. Determine the probability that resident is a man and opposes the bridge?
Based on this data, give a 95% confidence interval for the average MAO activity level of bulimic patients. Assume that the level of MAO activity is normally distributed.
How much evidence is there that the mean composite satisfaction rating exceeds 42?
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
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