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Q1) As condition of employment, Fashion Industries applicants should pass a drug test. Of last 220 applicants 14 failed the test. Develop 99% confidence interval for proportion of applicants that fail the test. Would it be sensible to conclude that more than 10% of applicants are now failing the test? Additionally to testing of applicants, Fashion Industries randomly tests its employees all through year. Last year in 400 random tests conducted, 14 employees failed test. Would it be sensible to conclude that less than 5% of employees are not able to pass random drug test?
A student with a 3.5 to 4 grade point average who took standardized test is randomly selected. Determine the probability that students test score is less than 36.
Mean and standard deviation are 584.6 and 34.28
For what value of t will the null hypothesis not be rejected?
Calculate η 2 , the percentage of variance accounted for by treatment.
Draw the OC curve. If the average number of defects increased by to 10 per tractor, what would the probability of detecting the shift in a control chart?
Determine the variance of firm's profit for the month.
How much time should the employer allow employees to finish the job? (Round up to the nearest minute).
In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken.
Assume a business researcherwishes to test hypothesis that greater proportion of marketing managers keep track of such obligations.
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots.
Determine the calculated value of the test statistic? What distribution does test statistic have when null hypothesis is true?
In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered.
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