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Test the hypothesis that more female's use instagram than male's. Samples of 500 female and 500 male's were chosen, and 430 females and 390 males used instagram in the past week. Use the 10% significance level
the manager of an accounting office at a large hospital was interested in studying the problem of errors in the entry
Compute population µ and ð for the population. Find the z score for each population transform the original population into a new ppulation of N=5 with a mean µ=60 standard dev.ð=8.
Suppose the probability of a boy being born is the same as the probability of a girl being born. Find the probability that a family with three children will have two boys and one girl.
consumers choices are prey to subtle discrepancies that arise in cognitive accounting. learning how and when you are
a student took two national aptitude tests. the national average and standard deviation were 675 and 150 respectively
in a class of 50 students the result of a particular examination is a true mean of 70 and a true variance of 12. it is
Summarize the results of the data analysis.
A SRS of size 16 drawn from a Normally Distributed population has a mean of 30 and a standard deviation, s, of 5. With 95% confidence, what is the interval that captures the true mean of the population?
in a past election the voter turnout was 51. in a survey 843 subjects were asked if they voted in the election. find
Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance.
in order to estimate the difference in the yearly incomes of marketing managers in the east and west of the united
There are 20 qualified applicants for 5 trainee positions in a fast-food management program. How many different groups of trainees can be selected?
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