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Given a binomial distribution with n=29 and p=0.83, would the normal distribution provide a reasonable approximation? Why or why not.
Compute the value of z and state your decision regarding the null hypothesis.
A study was conducted to determine if there was a relationship between the prices a non-member of a club paid for various publications and the prices that a member paid for the same publications. The data gathered is shown below.
The mean of a normal probability distribution is 60; the standard deviation is 5.
You're considering investing in a portfolio of the common stocks of four publicly-traded companies with betas as follows:
Find out the conditional probability for the given data. Illustrate what is the conditional chance that the selected person is male?
Statistical Hypothesis test for the given sample
First National Bank and City National Bank are competing for customers who would like to open IRAs. 32 weeks are randomly selected for First National Bank and another 32 weeks are randomly selected for City National.
Consider the experiment of rolling a pair of dice. Suppose that we are interested in the sum of the face values showing on the dice.
Suppose that 40% of cars in your area are manufactured in the United States, 30% in Japan, 10% in Germany, and 20% in other countries. If you randomly select 6 cars, what is the probability that two of them are Japanese?
Assume the population standard deviations are not the same. At the .05 significance level, is there a difference in the mean waiting time?
Calculate the sample mean and sample standard deviation.
Does the weight of a vehicle affect the gas mileage? The following random sample was collected where x = weight of a vehicle in hundreds of pounds and y = miles per gallon.
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