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Changes in sample size. Suppose that in the setting of the previous exercise you have the resources to contact 1000 recent graduates.
If all respond, will your margin of error be larger or smaller than $1100? What if only 50% respond? Verify your answers by performing the calculations.
Write the null and alternative hypotheses. Identify which is the claim. A light bulb manufacturer claims that the mean life of a certain type of light bulb is less than 775 hours.
How much work would have to be done if no material were present?- How much work is done to change the total magnetization of the material when the temperature is 300 K and when it is 1K?
Read the article from the Milwaukee journal (May 1992) entitled "Non -cents: Laws of probability could end need for change," which follows.- Does this seem like a reasonable proposal to eliminate carrying change in your pocket?
automated manufacturing operations are quite precise but still vary often with distributions that are close to
How many classes would you suggest? What is the most suitable class interval? What is the lower limit of the initial class? Create the frequency distribution. Describe the profile of the distribution.
in a very large population the distribution of annual income is skewed with a long right tail. we take a simple random
If the purchase price for a tree is po = €30 which she then sells at ps = €50, assuming she cannot recover any value at all from any unsold tree, what is the quantity of trees she should purchase in order to maximize her expected pro..
suppose you have a bag of 150 marbles 52 are all red 23 are all green 40 are all blue 9 are red and green 14 are green
If the person uses chains, what is the probability that he carries a shovel? Write a Solution Trail for this problem.- Given that the person does not use chains, what is the probability that she carries a shovel?
a population has a mean of 50 and a standard deviation of 13. if a random sample of 36 is taken what is the probability
Run a simple linear regression of these five pairs of numbers and estimate a linear relationship between income and percentage growth in wealth.
Genetic engineering for cancer treatment. Here's a new idea for treating advanced melanoma, the most serious kind of skin cancer.
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