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Among mildly obese people minsutes of activity varied accodring to N(373,67) distribution. Minutes of activity for lean people gad N(526, 107). Withink what limits do active minutes for about 95% of people in each group fall? Use the 68-95-99.7 rule.
Find out whether quality of items produced appears to be independent of production process used. Compute expected number of defective units produced by Process 1.
Based on this sample, is Moe correct in his assertion? Write up formal commentary of results of your test.
Describe the purpose of transforming raw scores into standard scores. Describe what "normal distribution" means.
The firm has already decided that any sample mean below 78 or above 82 will signal the workers that the process is not working properly.
Compare the two sets and describe what you discover. The following data sets shows the ages of the first seven presidents (President Washington through President Jackson) and the seven most recent presidents including President Obama. Age is given..
If Molly and Kathleen wishes to make a profit of $5,000 for summer, how many pupils do they require to enrol?
Many people attend work and produce little or nothing of value that is why they are terminated.
Determine the probability that particular call lasted between 110 and 180 seconds?
Sugar packaged by a certain machine has a mean weight of 5lb and a standard deviation of 0.02 lb. For what values of c can the manufacturer of the machinery claim that the sugar packaged by this machine has a weight between 5 - c and 5 + c lb with..
A class contains 30 students. Ten are female (F) and U.S. citizens (U); 12 are male (M) and U.S. citizens; 6 are female and non-U.S. citizens (N); 2 are male and non U.S. citizens. A name is randomly selected from the class roster and it is female..
Identify the sampling distribution to be used: the standard normal distribution or the Student's t distribution. Find the critical value(s).
A carpet company advertises that it will deliver your carpet within 15 days of purchase. A sample of 49 past customers is taken. The average delivery time in the sample was 16.2 days.
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