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1. Given an infinite population with a mean of 75 and a standard deviation of 12, the probability that the mean of a sample of 36 observations taken at random from this population exceeds 78 is?
2. A producer of a juice drink advertises that it contains 10% real fruite juices. A sample fo 75 bottles of the drink is analyzed and the percent of real fruit juices is found to be 6.5%. if the true proportion is actually 0.10, what is the probability that the sample percent will be 6.5% or less?
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data show the temperature in degrees centigrade at five point in time during a manufacturing cycle.
Marentette and El-Masri (2011) used logistic regression to identify predictors of obtaining seasonal influenza vaccination among hospital-based nurses in Canada. Their results are shown in table 1:
At the 0.05 significance level, can he conclude that number of absences has declined? calculate approximately the p -value.
Assume that the master budget for Cannondale shows total variable expenses of $10,000. The budget was based on production of 5,000 units. Cannondale sells all units it produces.
A check of dorm rooms on a large college campuses revealed that 38% had refrigerators, 52 percent had TVs and 21 percent had both a TV and a refrigerator. What's the probability that a randomly selected dorm room has.
First step of analytical hierarchy process doesn't include?
For a sample of students in the college of business administration at mid-atlantic university, the mean grade point average is 3.10 with a standard deviation of 0.25.
Determine the likelihood of accepting a lot which is 1% defective?
Find the product of the vector of state probabilities for the preceding period and the matrix of transition probabilities.
Compare two models. Model #1 has an r-squared of .55 and an adjusted r-squared of .50. Model #2 has an r-squared of .52 and an adjusted r-squared of .51. Given this information, what model should you use?
Determine the mean for list of numbers. 6, 5, 9, 4, 14, 9 (Round to the nearest tenth)
Inspect table produced in question 2 above. Comment on relative sensitivity of minimum sample size to actual proportion and to desired half width.
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