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Identify at least one example of probability encountered in everyday life.
Explain how probability is used in that situation.
Identify the type of proability your example best fits by explaining whether it is an independent event or dependent upon something else.
Describe whether the data appear to be approximately normally distrusted by .. a. Comparing data characteristics to theoretical properties.
The length of time for one individual to be served at a cafeteria is a random variable having a lognormal distribution with a mean of 10 minutes and standard deviation of 2 minutes.
Does correlation equal causation? Does the strength of correlation depend on the direction of the relationship? What is the meaning of a zero correlation? Explain your answers.
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)?
Inverse relationship with wage spending. What should the microeconomist who developed this multiple regression model be particularly concerned with?
Why does the sample size play such an important role in reducing the standard error of the mean? What are the implications of increasing the sample size?
a) Do a test to see if workers attitudes on this matter have changed using a 90% alpha. b) Explain to management what your findings are and what this suggests about future decisions vs work options.
What variables will be included, and collection methods used to obtain data. What is the population, sampling method used and why it is the best. Plan for data: describe what you will do with data once you have it, include types of graphs used and..
Each organization gets a 90% confidence interval. About how many of these intervals should cover the population average?
The simple random sample is n = 14, σ = 12.5 and the original population is normally distributed.
State the null and alternate hypotheses. Calculate the sample standard deviation. Determine which test statistic is appropriate (chi-square or F), and calculate its value.
q2. hospital stays.theu.s.nationalcenterforhealthstatisticscompilesdataon
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