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A machine dispenses a liquid drug into bottles in such a way that the standard deviation of the contents is 81 milliliters. A new machine is tested on a sample of 24 containers and the standard deviation for this sample group is found to be 26 milliliters. At the 0.05 level of significance, test the claim that the amounts dispensed by the new machine have a smaller standard deviation.
consider a normal distriubtion with mean 5 and standard deviation 2a. sketch the associated normal curveb. write the
Using an appropriate statistical test determine if there is a significant association between gender and satisfaction with the new initiative.
suppose that the distribution of keyboarding speeds for students who have completed a two- week keyboarding course is
Visa Card USA studied how frequently young consumers, ages 18 to 24, use plastic cards in making purchases. The results of the study provided the following probabilities.
question 1the monthly average sales of the smiling ninja computer company may be approximated to a normal distribution
how much should a healthy kitten weigh? a healthy 10-week-old domestic kitten should weigh an average of mean 24.5
Test the hypothesis that the dogs did significantly better than what would be expected with random guessing.
Find the z-score for a car driving 20 mph in this construction zone. It is an outlier (assume the data is bell shaped, so dont actually test it with pearsons index).
By successfully completing this assessment, you will demonstrate your proficiency in the following course competencies and assessment criteria:
In a factory items are produced on three production lines, A, B, and C. At the end of each line the items are packed into boxes of 20. These boxes are then stored in the warehouse. The boxes from each production line are stored in separate stacks...
A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at most 65%.
explain the difference between qualitative quantitative discrete and continuous
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