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The pucks used by the National Hockey League for ice hockey must weigh between 5.5 and 6.0 ounces. Suppose the weights of pucks produced at a factory are normally distributed with a mean of 5.75 ounces and a standard deviation of .11 ounce. What percentage of the pucks produced at this factory cannot be used by the National Hockey League?
Calculate percentage and sectarian angle of each program - construct a frequency distribution and draw a histogram and frequency polygon.
suppose the current price of gold is 930ounce. suppose also that the price 1 month from today has a normal distribution
The average height of flowering cherry trees in a nursery is 11 feet. If the heights are normally distributed with a standard deviation of 1.6, find the probability that a randomly selected cherry tree in this nursery is less than 13 feet tall.
Normal distribution with mean 35 minutes and standard deviation 2 minutes. On 95% of occasions the mailing preparation takes less than _______ minutes.
The standard deviation of the sample was 6 people. Develop a 95 percent confidence interval for the population mean.
In a class of 40, 16 driver a car made outside the United States. What is the confidence interval for the total population of students at the 95% level?
describe what a type i error would mean in the context of this problem.select onea. reject h0 when the mean score has
The same students increased their scores on a retest to: 85,79,75,95, and 84. At the 0.05 significance level, is the intervention plan helpful in increasing grades?
What are some examples of each of the trend types (Secular/Linear)? What external factors might affect each of the different types of trending?
Survey of 8000 women, 5431 say they change their nail polish once a week. construct a 95% confidence interval for the population proportion of women who change their nail polish once a week.
Probability of two mutually exclusive events intersecting Can be any value between 0 to 1, Must always be equal to 1.
the door frames used in an industrialised building system are of one standard size. if the heights of adults are
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