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The real estate industry claims that it is the best and most effective system to market residential real estate. A survey of randomly selected home sellers in Illinois found that a 95% confidence interval for the proportion of homes that are sold by a real estate agent is 69% to 81%. Four interpretations are offered below. Three are incorrect and one is correct. Find the three incorrect interpretations and explain the error in each of them.
1. We are 95% confident, based on this sample, that between 69% and 81% of all homes in Illinois are sold by a real estate agent.
2. We are 95% confident that between 69% and 81% of homes in this survey are sold by a real estate agent.
3. 95% of all homes in Illinois are sold by a real estate agent.
4. 95% of all random samples of home sellers in Illinois will show that between 69% and 81% of homes are sold by a real estate agent.
Use the given data to find the correlation coefficient r, regression equation and scatter plot in MS Excel. .Based on the linear correlation coefficient r, is this a good model? Explain.
Show that radG ≤ diamG ≤ 2radG for every graph G.Prove the weakening of Theorem 1.3.4 obtained by replacing average with minimum degree. Deduce that | G | ≥ n0(d/2, g) for every graph G as given in the theorem.
Why is differentiation not a linear transformation from V to V? What is the image of V under the operation of taking the second derivative?
Then, explain the meaning of either a vertical shift of 10 units or a horizontal shift of ten units. Be sure to explain what this shift would mean in the context of the function.
what is the number of fish? six months what is the total number of fish? One year after,what are the total number of fish. Round to the nearest whole number.
Five schoolchildren are weighed in pairs. The readings (in kilograms) are: 58,60,61,64,64,65,67,68,70 and 71. Find the weights of individual children.
Evaluate √π2 + √6 correct to 2 decimal places
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A 12 foot ladder is leaning against a wall. If the top slips down the wall at a rate of 2 ft/s, how fast will the foot be moving away from the wall when the top is 10 feet above the ground?
Evergreen Fertilizer Company produces fertilizer. The company’s fixed monthly cost is USD 25,000, and its variable cost per pound of fertilizer is USD 0.15. Evergreen sells the fertilizer for USD 0.40 per pound. Calculate the monthly break even volum..
Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer? Explain ..
variation exists in virtually all parts of our lives. we often see variation in results in what we spend utility costs
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