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A process follows the binomial distribution with n = 8 and p = .3. Find
a. P(x = 3)
b. P(x > 6)
c. P(x 2)
Evaluate the value of population proportion. Develop a 99% confidence interval for population proportion.
To find out the prior probability, conditional probability and posterior probability. Calculate the posterior probability that the bid will be successful given a request for additional information.
At the .05 significance level, is the number of units produced on the afternoon shift larger?
An experiment was performed to investigate lifetime of a component exposed to high heat. Three different oven types were used at either 550°F or 600°F.
Create a 95% confidence interval for population mean. Is it sensible that population mean is 28 weeks? give explanation for your answer.
Determine a 95 % confidence interval for the iron concentration.
If the rods' lengths produced by your line are normally distributed, with a mean equal to the target of 0.2 meters, and a standard deviation of 0.015m, what percentage of rods will be scrapped?
Beta and required rate of return stock has required return of 11%; risk-free rate is 7%t; and market risk premium is 4 %. Determine the stock's beta?
Suppose that a researcher does a study to see how level of anxiety (A 1 = low, A 2 = medium, A 3 = high) is used to predict exam performance (Y).
Use a .10 level of significance to test the claim that the variance of all scores in the population is more than 9.
If we fit the least-squares line to the 12 data points (one for each month) we obtain the following results from a software package. Notice that temperature is taken as the explanatory variable and crawling age as the response.
An ANOVA procedure is used for data that was obtained from four sample groups each comprised of five observations. The degrees of freedom for the critical value of F are:
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