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Over a long period of time in a large multinational corporation, 10% of all sales trainees are rated as outstanding, 75% are rate excellent/good, 10% are rated satisfactory, and 5% are considered unsatisfactory. Find the following probabilities for a sample of n = 10 trainees selected at random: (a) Two or more are rated as outstanding. (b) None of the trainees are rated as unsatisfactory. (c) Two are rated outstanding, six are rated excellent/good, one is rated satisfactory.
In random samples of 12 from each of two normal populations, we found the following statistics: Describe what happens when the sample standard deviations get larger.
The next 20% a B, the next 42% a C, the next 18% a D and the bottom 12% an F. What average must you exceed to obtain an A?
At.01 significance level, can we conclude that there is more variation in selling prices of oceanfront homes?
Test either there is any difference among the given variable also what does the Levene's Test shows. What variable is presented in this table.
Below are scores for 10 randomly selected students on each exam. 95% confidence interval for the mean scores on?
What is the 90% confidence interval estimate of the difference between two population means.
Identify which of the methods from this lesson (GCF, grouping, difference of squares, or perfect squares) could be used to factor the polynomial.
I need to collect both primary and secondary data regarding the research issue on salary of baseball players. (the aim of this research is to verify whether the salary of the baseball players varies with respect to the state)
A player of a video game is confronted with a series of opponents and has an 80% probability of defeating each one. Success with any opponent is independent of previous encounters. The player continues to confront opponents until defeated.
Calculate the Pearson correlation for these data also determine whether there is a significant correlation among attitudes for husbands also wives.
Mary claims that the range, standard deviation and variance are all measures of dispersion. John adds to Mary's claim by stating that the coefficient of variation is a measure of relative dispersion.
A rental agent claims that the mean monthly rent, mu, for apartments on the east side of town is less than $725. A random sample of 13 monthly rents for apartments on the east side has a mean of $724, with a standard deviation of $15.
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