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A binomial process has a probability of success of 0.15. If eight trials are run, what are the mean number of successes and the standard deviation? What is the probability distribution for the number of successes?
What extremely important characteristic of the data set is not considered in the hypothesis test?
u.s. bureau of the census data reveal the largest town in the state of oh has a population of one million families. the
a final exam in math 160 has a mean of 73 with a standard deviation of 7.8. 40 students are randomly selected and
Formulate an appropriate statistical model, defi ning all the terms. State the null and two-sided alternative hypotheses which reflect the research question of interest.
Determine the overall probability (rating), given all the ratings and weightings that, when A, B, C, D and E are combined.
The sample resulted in a mean trading volume of > = 39.48. Assuming a population standard deviation of 15.07, compute the margin of error for a 95% confidence interval for mu.
Estimate the population mean
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.
Find the z-score boundaries that separate a normal distribution as described in each of the following: the middle 20% from the 80% n the tails.
At.05 level of significance can director conclude that there is difference in the number of circuit cards bought by month?
An artifact is discovered at a certain site. If it has 46% of the carbon-14 it originally contained, what is the approximate age of the artifact to the nearest year?
Suppose the score of architects on a partecular creativity test are normally distributed. What percetage of architects have a Z scores (A) above .10.
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