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10 cartons are taken at random from an automatic filling machine.The mean net weight of the carton is11.8 kg and standard deviation of 0.15kg. Does the sample mean differ significantly from the intended weight of 12kgs?
FBI Report do greater universities that tend to have more property crime. Keep a scatter diagram also sketch the line you think best fits the data.
Compute the coefficient of determination, r 2 , and interpret its meaning.
What is the relationship between the variance and the standard deviation?
What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.02 of the population proportion?
Prediction interval for the regression line - Using the age and sick days data from table below, find the 98% prediction interval when x = 47 years.
Find the probability that a randomly selected employee earns less than $5.43.
Of the adults in Jefferson County, 10% have had CPR training
Findout the probability using normal approximation for the provided values. Findout the specified probability from a table of Normal probabilities.
A review of voter registration records in a small town yielded the following table of the number of males and females registered as Democrat, Republican, or some other affiliation.
Impact on sampling of increasing sample size is: The potential for extreme sampling error is reduced.
Describe appropriate treatment means μ1, μ2 and μ3. After that Test for statistically significant differences between these treatment means. Set α = 0.05.
Compute a 5-month moving average forecast for June through January.
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