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The design tolerance thickness for an automotive part is 55 mm to 65 mm. If the process mean thickness is 61 with a standard deviation of 2.3 mm, then what percentage of the sheets will be acceptable? (i.e. What percentage will fall within the design tolerances?) Assume that the distribution of these parts is normally distributed. Diagram required.
Consider an acceptance-sampling scheme in which factory takes delivery of a batch of components if random sample of 400 components contains fewer than M defectives.
Using the finite population correction factor, compute the standard error for each of the three firms given a sample of size 50.
What is an independent sample and what is a related sample? When should researchers use varying hypothesis tests for the different types of samples?
If one of these respondents is randomly selected, what is the probability of getting someone who has been in a car accident?
If "fair" coin is tossed four times and comes up heads all four times, probability of heads on the fifth trial is?
Develop a joint probability table for these data. If a student goes full time, determine the probability that school quality is first reason for selecting a school?
Concept of statistical signi cance
What is the rejection point at α = .01 and indicate if you would accept or reject H o ?
What method is best suited for such a survey? Draw the sample using the random number table and bring out the rationale of the procedure.
The weight of an almond is normally distributed with mean 0.05 ounce and standard deviation of 0.015 ounce. Find the probability that a package of 100 almonds will weigh between 4.3 and 5.3 ounces.
Describe and analyze your quantitative data and Briefly address the data analysis process.
Draw a tree diagram depicting the sample space outcomes for this experiment.
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