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1. 74% of freshman entering public high schools in 2006 graduated with their class in 2010. A random sample of 81 freshman is selected. Find the probability that the proportion of students who graduated is greater than 0.744. Write only a number round to 4 decimal points.
Clearly identify the independent and dependent variables you would study. Determine whether a one-tail or two-tail test is most appropriate and explain why. Generate a testable null statistical hypothesis and an alternative statistical hypothesis.
We want to know if his support has decreased. In computing a test of hypothesis with , what is the estimate of the overall proportion?
Compute standard normal z-score corresponding to value of x = 23. e. Determine P(x 23). G. Determine P(16
Equally likely chances of (1) increasing in value, (2) decreasing in value, or (3) remaining the same value. Calculate the probability at least one of the stocks increase in value.
Assuming that the population does meet the 0.06 standard, what is the probability of getting a sample of 300 with 27 or more dark ends? Comment on this result.
suppose that prices of a certain model of new homes are normally distributed with a mean of 150000. find the percentage
For a Normally distributed statistic, how many standard deviations on either side of the mean do these alternative control limits lie?
you have just received an inheritance of 10000 and you decide that you should invest the money rather than blow it on
Conduct an analysis of variance by completing the corresponding ANOVA table. What conclusion can you make in terms of effects' significance? Is the fold-at-wing-tip helpful (to improve the flight time)?
in a recent survey of 1000 u.s adults 19 are concerned that their taxes will be audited by the internal revenue
Draw the graph for the distribution of these data and label it both in terms of raw scores and z-scores. Identify the percentage of students who scored in the following ranges of raw scores:
USA Today reported that 11% of all books sold are of the romance genre. If a local bookstore sells 316 books on a given day, what is the probability that
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