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The table below shows the probability distribution of the annual sales (in Millions) of a small rm.
Probability Sales0:10 800:20 900.25 1000.40 1100.05 120
Calculate the Expected value, Variance, and Standard deviation of the annual sales?
Craft one page brief of the statistical results (include any additional pages needed for any APA tables or graphs and the SPSS syntax and output) in which you do the following:
If the level of significance is 0.05, what is critical value to set up the decision rule to test the claim that the liberal arts students perform better than engineering students on average?
Use technology to find the estimated minium required sample size. The minimum sample size required is ? Computer users round to the nearest whole number. What is a major obstacle to getting a good estimate of the population mean?
What percentage of items will weigh between 6.4 and 8.9 ounces?
A researcher believes that the percentage of people who exercise in California is greater than the national exercise rate. The national rate is 20%.
How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 100 compare to the bell-shaped curve for sampling distribution of sample means for samples of size n = 60.
The p-value of the test is closest to:
You are the manager of a softball league in the locality in which there are 5 local teams with 10 people each. The league has been arranged for parity so that each local team has 5 good players and 5 bad players.
A University Counseling Clinic is interested in predicting the levels of depression from the number of social events attended per week by a sample of their clients. The data are below:
One of the most famous probability calculations is called the "birthday problem". In probability theory, the birthday problem or birthday paradox concerns the probability that, in a set of n randomly chosen people
If two events are collectively exhaustive, what is the probability that both occur at the same time?
You took a sample of your expenses for 20 weeks and found that the average is $285 and the standard deviation for the sample is $25. Set up your null and alternative hypothesis for testing whether your cists are different and do the analysis using..
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