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500 gram bottle, mean 506 standard deviation 12kgs in 3 decimal places what is the probability that a bottle contains less than the stated weight? more than 520gms, within 10grms of the stated weight & weight that only 5% of bottles contain less than this weight?
Use MegaStat's output for simple linear regression to determine the regression equation
What is the 95% confidence interval for the true mean length of the bolt?
You are a researcher who is interested in the effect of child care on the attachment which develops between an infant and a caregiver.
A point estimate for the difference between the mean purchases of the users of the two credit cards is:
A sample of 20 is taken, resulting in a mean of 16.45 and standard deviation of 3.59. Assume that x is normally distributed and used alpha of 0.5 to test hypotheses.
Cite an example of how you could/would apply a test of a hypothesis for a single population proportion, two tail test described in the lecture to real world situations?
Below are bowling scores for several UMUC statistics professors. Based on output from ANOVA, who is the better bowler (for those of you who don't bowl, a numerically higher score indicates a better score)?
What are various non-parametric tests utilized in business decision making? Give an example of each test with an appropriate business situation.
Any person who is familiar with these trees understand the height of a California redwood tree which is related to another characteristics of the tree.
Recognize and describe potential threats (up to 3) to internal validity.
First National Bank and City National Bank are competing for customers who would like to open IRAs. 32 weeks are randomly selected for First National Bank and another 32 weeks are randomly selected for City National.
Find the minimum sample size needed, using a prior study that found that 36% of the respondents said they have high speed Internet access.
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