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The arrival pattern of customers at a supermarket occurs sequentially. The manager noted down the arrival sequence of customers sex-wise (M and W denote man and woman). WWW MM WW MMM WWW M W MMM WWW MM WWW MMM W MM WW MM W MM Test the hypothesis that the arrival pattern of the customers is random. The critical value of Z at a (alpha) = 0.05 is 1.96
What is the distribution, the mean and the standard error of the sampling distribution of sample average?
This is not a statistically significant difference. Assuming all the other results remain the same, find the smallest possible mean difference
What is the difference between a parameter and a statistic? Describe an example. Finally, there are "adjustments" that statisticians make to statistics
Describe the assumptions of normality and homogeneity of variance. When these assumptions are violated, what are your options?
you win a game if you roll a die and get a 2 or a 5. you play this game 60 times.a what is the probability that you win
Identify each account as asset (A), liability (L), or equity (E). Identify whether the account is increased with a debit (DR) or credit (CR).
a computer retail store has 15 personal computers in stock. a buyer wants to purchase 4 of them. unknown to either the
1. if the population is normally distributed then the sample mean is also normally distributed even for small sample
Demonstrate how to accurately interpret output for the chi-square test. That leads you to nonparametric tests, one example of which is the chi-square.
What is an appropriate null hypothesis to compare the quality of the product manufactured in the overseas plants and the U.S. plants? Why?
What is the sum of these probabilities and why is the number less than 1?
(a) Model the policy bring the umbrella only when it rains" as a Markov chain by defining the state space and transition probabilities. (b) What percentage of the time is the employee going to be wet?
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