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1. The follow-up study has an alpha of 0.05 and reports that the group of adolescents who were offered the creative activities waiting on average 10 months before initiating sexual activity while the group that had the traditional sex education program waiting on average seven months before initiating sexual activity. Was this a statistically significant difference?
2. You analyze the difference in months before initiating sexual activity using a t-test to compare the group means and determine that the p-value is 0.08. Is the difference statistically significant? 3. If your conclusion is not correct, what type of error might you be making?
The president of a computer manufacturing firm states that there is a 70% chance that industry shipments of notebook computers will double in the next 5 years. Is this a classical probability, a relative frequency probability, or a subjective pro..
A W200×59 structural steel wide-flange section is used as a pinended column 7 m long. Find the allowable axial compressive load using Euler's formula.
Can you can tell the difference between coke and pepsi in a blind taste test? Most people say they can and have a preference for one brand or another.
Develop some scheduling and staffing policies that have the probability of increasing continuity of assignment and will not result in a financial liability.
Travel and Transportation At maximum takeoff weight, the Airbus A350-900 needs a runway of at least 8000 feet.
Identify and interpret the F test and identify and interpret the t tests for each of the coefficients and analyze multicollinearity of the independent variables
consider a normal population with micro 25 and ? 7.0.a calculate the standard score for a value x of 27.b calculate
If the glass has a thickness that is more than 0.05 inch below the mean, it must be discarded for safety considerations.
Suppose the actual situation is that the sample comes from a population that is not the one hypothesized by the null hypothesis. If the significance level is .05, what is the probability of making a Type I error?
in one area of an orchard there are 17 trees of which 10 are busy and 7 are lean. if 4 trees are randomly selected for
Constructing a p chart for unpaid invoices. The controller's office of a corporation is concerned that invoices that remain unpaid after 30 days are damaging.
Why is it important to promote a sample of names not meeting the selection criteria when rolling out with a new selection criteria?
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