The average labor time to sew a pair of denim jeans is 4.2 hours with a standard deviation of 30 minutes. If the distribution is normal, then the probability of a worker finishing a pair of jeans in less than 3.5 hours is:
a. 0.0808.
b. 0.4192.
c. 0.5808.
d. 0.9192.
e. 0.9808.
Question 2
True or False The sample proportion can be considered a random variable that will take on different values as the procedure leading to the sample proportion is repeated a great many times.
Indicate whether the statement is true or false
The Serial Reaction Time Task
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