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Find sample size, mean and standard deviation for the binomial distribution.
Quota Problem Sales June solicits contributions for charity by phone. She has a history of being successful at getting a donor on 55% of her calls. If June has a quota to get at least four donors each day, how many calls must she make to be 96.4% sure of meeting the quota?
A check of dorm rooms on a large college campuses revealed that 38% had refrigerators, 52 percent had TVs and 21 percent had both a TV and a refrigerator. What's the probability that a randomly selected dorm room has.
Construct an appropriate control chart and comment on the process.
What is the null and alternative hypothesis? What is your final conclusion?
Which combination of factors has greatest likelihood of rejecting null hypothesis?
The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast
To test whether there is any association between two variables using Chi-Square test for independence.
A pair of dice is rolled. What is the probability of each of the following? (Round your answers to three decimal places.)
In certain normal distribution of scores, mean is 50 and standard deviation is 4. Determine z-score corresponding to a score of 55.
A sample of 50 provided a sample mean of 14.15. The population standard deviation is 3.
Multiple choice question using Forecasting techniques. Which among of the following models are best suited to forecast a time series with a stable seasonality component.
Would Kruskal-Wallis be the suitable statistical procedure to test this Research Question (RQ)? Describe your answer. When would you use Chi-Square test rather than One-Way Anova?
Gigi has rolled a natural on four straight tosses of the dice. This excites the gamblers standing around the table.
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