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Assume that the smiling time of eight-week old babies, in seconds, follows a uniform distribution between 0 and 23 seconds, inclusive. This means that any smiling time from 0 to and including 23 seconds is equally likely.
Let X = length, in seconds, of an eight-week old baby's smile.
Find the probability that a random eight week old baby smiles more than 12 seconds KNOWING that the baby smiles MORE THAN 8 SECONDS.
Events A and B are mutually exclusive events defined on common sample space. If P (A) 0.5 and P (A or B) = 0.70, determine P (B).
A sample of 100 observations has a mean of 2.99 and a standard deviation s equal to 0.5 Conduct the following test of hypotheses about the corresponding population mean at a level of significance of α = 0.2
In addition, record the values for the UCL, center line, and LCL. Also, record any points that are out of control. Use a z-value of three.
Caselet on McDonald’s vs. Burger King - Waiting time
The heights of young women are approximately normal with mean 65 inches and standard deviation 2.5 inches.
Compute and interpret each of the statistics in parts(a) through (f) Mean and Median.
Categorize the events as dependent or independent. Events A and B where P (A) = 0.7, P (B) = 0.8, and P (A and B) = 0.56.
Determine relative frequency of X=4? Generate the cumulative frequencies.
A busy landscaping supplies company sells wood chips for garden mulch. The mulch is sold by the cubic metre and delivered to households in a small truck.
Determine the probability that a randomly selected teacher earns more than $525 per week?
A certain random experiment can result in one of four different possible outcomes, which we'll call A, B, C and D.
What are the possible combinations of coins that Sanjay could have received in change?
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