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The life of a Radio Shack record player is normally distributed with a mean of 3.4 years and a standard deviation of 0.7 years. Radio Shack guarantees its record players for 2 years.
(a) Find the probability that a record player will last less than 2 years? %
(b) Find the probability that a record player will last more than 4 years? %
How do you calculate joint probabilities of both independent and dependent events using the general and special laws of multiplication.
The "average" income of American households in 1998 was either $38,885 or $51,855, depending on whether we use the mean or median to measure center. We can say
Estimate, for a year in which million new passenger cars are registered, the number of cars that will be retired from service.
Another experiment that the earlier statistics class did was to count M&M's (okay, so this isn't biology).
What would you do if your sample size is smaller than 100? Would you continue with your research and what is the best way to approach this issue?
A statistically significant result occurs when the value of the test statistic falls in the rejection region. A result has practical significance when it is statistically significant
Create a Venn Diagram using Microsoft Word that shows the differences and similarities between qualitative research designs and quantitative research designs. This is in regards to the educational setting.
Please explain in a way that it is easy to understand. Providing examples is helpful please.
A survey of 500 internet users found that the users were online an average of 6.5 hours a week with a standard deviation of 3.1 hours. If 49 internet users are randomly selected what is the probability that their average time online will be more t..
For this purpose, a random sample of 55 plots, each of size 100 square meters, is used. The number of ferromagnetic artifacts for each plot is determined.
Why is a factorial MANOVA appropriate to use for this research design?
When using the normal distribution (empirical rule) to obtain the bounds for a 99.73 percent of the values in a population, the interval generall will be _________________ the interval obtained for the same percentage if Chebyshev's theorem is ass..
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