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Use the given information to find the minimum sample size required to estimate an unknown population mean, µ.
Margin of error: $120, confidence level: 95%, s = $593
Answer
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show how to copy and paste the results of the two-tailed hypothesis test on a report.show how to figure the
What does the * represent in a boxplot? How many * are there for the variable Book Cost? What are the outlier values? What is the 5-number summary for Book Cost?
What does null hypothesis for repeated-measures hypothesis test state?
Find the probability that fewer than 5 are satisfied with the airlines. (c)Find the probability that 8 or more are satisfied with the airlines.
Assume the data have bell shaped distribution with a mean of 30 and a standard deviation of 5. Employ the empirical rule to determine the percentage of data within each of the following ranges: 20 to 40, 15 to 45, and 25 to 35.
Does it appear that the treatment is effective? That is, is it very likely that we would observe only 6/200 contract hepatitis when 7% of the population is known to do so?
The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?
At the end of 24 weeks of treatment, subjects were classified as responders or non-responders to treatment based on a battery of psychological tests.
When asked to construct numeric hypotheses, what does this entail? How does one format research questions and sub-questions?
Expectation and variance of a random variable and let X be a random variable with the following probability distribution:
Set up dummy coded dummy variables to contrast each of the other groups to Group 2, medium Anxiety; run a regression to predict exam performance (Y) from these dummy coded dummy variables.
If you take the mean weights for random groups of 10 adults and form a new distribution, how will this new distribution compare to distribution of individuals?
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