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If np >5 and nq>5, estimate P(more than 5) with n=13 and p=0.7 by using the normal distribution ; if np<5 or nq<5, then state the normal approximation is not suitable. P(more than 5)= please show work and give the answer.
The products are acceptable and that 30% are defective. If five of the products are randomly selected, find the probability that all five are defective?
A researcher wants to see if there is a relationship between birth order and personality. A sample of n = 100 people is obtained, all of whom grew up in 3-child families.
a sample of 15 graduates from eastern university showed that the mean time until they received their first job
consider the following. give your answers correct to two decimal places.a find the standard score z such that the area
If a manufacturer charges x dollars each for soccer balls, then he can sell 3000 - 150x soccer balls per week. Find a polynomial that represents the revenue for one week.
Suppose that you work for a newly restructured automotive company with nearly 100,000 employees. You are in charge of purchasing engines from an overseas supplier. Company policy is that you purchase several hundred engines each month to be placed in..
Test hypothesis that mean weight of 2 sheets are equal against alternative that they are not(suppose equal variances). Use α=0.05 and suppose equal variances. Determine the P value.
The hypotheses for this scenario are as follows: Null Hypothesis: μ ≤ 21.61, Alternative Hypothesis: μ > 21.61. You perform a one sample mean hypothesis test on a random sample of data and observe a p-value of 0.0095. What is the appropriate concl..
A researcher predicts that the percentage of people who do no watch TV is higher now than before the advent of the Internet. Let the p1 denote the population proportion of American adults in 1975 who reported watching no TV. Let p2 denote the corresp..
a manufacturer of light bulbs advertises that on average its long-life bulb will last more than 5000 hours. to test the
A high of 10 was possible. A sample of five tests was selected from each group. The test grade results were: At the 0.01 level, what is the critical value?
elongation measurements are made on 10 pieces of steel five of which were treated with method a aluminum plus calcium
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