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(A) Find the binomial probability P(x = 5), where n = 13 and p = 0.70.
(B) Set up, without solving, the binomial probability P(x is at most 5) using probability notation.
(C) How would you find the normal approximation to the binomial probability P(x = 5) in part A? Please show how you would calculate µ and σ in the formula for the normal approximation to the binomial, and show the final formula you would use without going through all the calculations.
Test whether the mean weight is less than 10 pounds. Use P-value approach.
The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.500 inches.
At the 0.05 significance level, can Ms. Bridgend conclude that she is earning an average of more than $20 in tips?
Test at 5% significance level null hypothesis that population mean is 40 hours against alternative that it is higher.
The manager is concerned that sales are slipping, after taking into account the average value of sales for four consecutive Saturdays being $4800.
Given a normal distribution of data, we know from the Empirical Rule that in between 2 standard deviations from the mean
Calculate estimated Cohen's d to measure size of treatment effect.
Based on the Correlation following are Multiple choices question. If the correlation coefficient among two variables is equal to zero, what can be said of the variables X and Y.
A student with a 3.5 to 4 grade point average who took standardized test is randomly selected. Determine the probability that students test score is less than 36.
Evaluate the difference in the mean ratings and find the standard deviation of the difference in the ratings, what is the chance both children are boys?
Is there evidence that the population mean is above $300, if X (bar) = $305.11 and s = $43.20?
You have two unbiased estimates, e 1 and e 2 , of a quantity with variances V 1 and V 2 respectively, and covariance Cov {e1,e 2 } = C. Form a new unbiased estimate:
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