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Nuts. A company says its premium mixture of nuts contains 10% Brazil nuts, 20% cashews, 20% almonds, and 10% hazelnuts, and the rest are peanuts. You buy a large can and separate the various kinds of nuts. Upon weighing them, you find there are 112 grams of Brazil nuts, 183 grams of cashews, 207 grams of almonds, 71 grams of hazelnuts, and 446 grams of peanuts. You wonder whether your mix is significantly different from what the company advertises.a) Explain why the chi-square goodness-of-fit test is not an appropriate way to find out.b) What might you do instead of weighing the nuts in order to use a test?
Select another sample of 30 scores from the same population, what measure of central tendency is likely to vary least between your first and second sample?
Count the money (bills and change) in your pocket or purse. Your instructor will record the amounts. As a class, construct a histogram displaying the data.
The probability Mary will receive an A in a class is 0.62. Assuming independence, if she is taking 5 classes this semester, calculate the probability she will receive exactly 3 A's.
The daily returns on a portfolio are normally distributed with a mean of 0.001 and a standard deviation of 0.002. What is the probability that the average return for the portfolio over the next 100 days exceeds 0.0015?
The average on an exam is 75 and the standard deviation is 17. If the instructor assigned grades based on the Normal distribution what percentage of students will make A's and what percentage will make B;s in teh exam. Assume standard cut-off for ..
Each test of an integrated circuit produces an acceptable circuit with probability p, independent of the outcome of the test of any other circuit. In testing n circuits, let K denote the number of circuits rejected and let X denote the number of a..
In baseball, the term "batting average" is employed as one way to measure a player's offensive performance. If we were to consider the idea of batting average in statistical sense
while doing a homework assignment you fit a linear model to your data set. you are thinking about changing the linear
What is the probability that the power supply would fail at 2,100 hours or less? Based on this probability, do you feel the PC maker has a right.
A hat contains 40 marbles. Of them 18 are red and 22 are green. If one marble is randomly selected out of this hat.
Probability of Landing Number 10 on Two Dices
What is the questionnaire score that separates customers who are considered risk averse from those who are not? Carry your intermediate computations.
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