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Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune tellers. Use a 0.09 margin of error, use a confidence level of 90%, and use results from a prior poll suggesting that 14% of adults have consulted fortune tellers.
Based on your analysis, how is the new bottling process working?
data to test the difference between two weighing methods for wheat deliveries gave a mean difference of 10 kg with a
I suspect that around 75% of my students will come to class each day (except for the exam dates.). How large sample do I need to ensure a 94% confidence with a margin of error of no more than 3%.
For each of the following situations, indicate what the general impact on the Type II error probability will be:
A behavioral research situation that could use a Pearson coefficient research study and a chi square research study. Present the rationale for each selection.
describing distribution the reaction times of 500 randomly selected drivers measured under standard conditions.a. how
If they enroll this many pupils, how much would they need to charge per pupils in order to realize their profit goal of $5,000.
The following data represent 15 samples, each consisting of 3 pairs of toothpicks, and the number of pounds required to separate each pair. Given these measurements, use one or more appropriate 3-sigma control charts in evaluating whether the proc..
question the student population at the state college consists of 55 females and 45 males.a. the college
Chi-square test for independent attributes - Are the opinions on the tax cut proposal independent of party affiliation? Use a = 0.01
Generate a vector x = (x1,..., x10,000) con- sisting of 10,000 random standard Normals. Let y = (y1,..., y10,000) where yi = exi . Draw a histogram of y and compare it to the pdf you found in part (a).
Assuming that the two job offers are independent of each other, what is the probability that the applicant gets an offer from both companies?
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