Is that a good estimate TutorRita just got a babysitting job. She will work about 10 hours each week and make $9 an hour.Her parents say she needs to save half, but she can spend the other half.Rita estimates she'll have around $50 of spending money each week. Is that a goodestimate?Yes.No, it is much too high.No, it is much too low.SubmitWork it outNot feeling ready yet? These can help:9 Estimate to solve word problonsMurti-step word problems (0)esc%23236.ertSfC

Answered: Image /qna-images/answer/ad9c6389-3d9d-4506-a90c-70b89a282022.jpg

Answered: Tutor Rita just got a babysitting job.…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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An important factor for used car buyers when determining the value of a car is how far the car has been driven. To examine this, a used car dealer randomly selects 50 five-year-old Kia Sportage cars that have been sold at auction during the past month. Each car was in top condition and equipped with automatic transmission, GPS and air conditioning. The following Microsoft Excel output analysis of these data shows the price ($'000) and the number of kilometres ('000Km) on the odometer. Use these results to answer the questions on the next page. Distance Versus Price of Used Kia Sportage 35 30 25 30 40 50 60 70 80 90 Distance ('000km) Regression Statistics t Stat P-value 15.82319 3.51E-15 2.563823 0.04773 -9.61369 3.28E-10 Price ($'000) 10 5 0 20 Multiple R R Square Adjusted R Square Standard Error Observations Intercept Distance 0.879723 0.773913 0.765539 3.460695 29 Coefficients Standard Error 40.56784 -0.45886
Give two examples of parameters and explain each in terms of point estimates and point estimators.
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.In a marketing survey, a random sample of 990 supermarket shoppers revealed that 260 always stock up on an item when they find that item at a real bargain price. (a) Let p represent the proportion of all supermarket shoppers who always stock up on an item when they find a real bargain. Find a point estimate for p. (Enter a number. Round your answer to four decimal places.)________________ (b) Find a 95% confidence interval for p. (For each answer, enter a number. Round your answers to three decimal places.)lower limit _____________ upper limit _____________
For some data, we know the range R of the data is 12 and its median is 6. Find Estimated Lowest Number, and Estimated Highest Number for this data. Give you answers in the same order asked.
What is the answer to this problem?
From the scatterplots, which of the following is TRUE? * SCATTER PLOT A SCATTER PLOT B Scaterplat al Tast Sre vn Self Laming Time scaterpkat of lest Score vs Self Learing line Sum of squares error (SSE) plot A is smaller than plot B. Both sum of squares error (SSE) are equal. Both plots total sum of squares (SST) are equal. The total sum of squares (SST) plot A is larger than plot B If r? is positive, then the coefficient of correlation cannot be negative. TRUE FALSE Tent Sane
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.In a survey of 1000 large corporations, 246 said that, given a choice between a job candidate who smokes and an equally qualified nonsmoker, the nonsmoker would get the job. (a) Let p represent the proportion of all corporations preferring a nonsmoking candidate. Find a point estimate for p. (Round your answer to four decimal places.)(b) Find a 0.95 confidence interval for p. (Round your answers to three decimal places.) lower limit upper limit What is the margin of error based on a 95% confidence interval? (Round your answer to three decimal places.)
a. Please answer this also on MINITAB. In 4 decimal places. Do not return my question. Let someone help me.
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.In a marketing survey, a random sample of 992 supermarket shoppers revealed that 274 always stock up on an item when they find that item at a real bargain price. (a) Let p represent the proportion of all supermarket shoppers who always stock up on an item when they find a real bargain. Find a point estimate for p. (Enter a number. Round your answer to four decimal places.) (b) Find a 95% confidence interval for p. (For each answer, enter a number. Round your answers to three decimal places.)lower limit upper limit Give a brief explanation of the meaning of the interval. We are 95% confident that the true proportion of shoppers who stock up on bargains falls within this interval.We are 5% confident that the true proportion of shoppers who stock up on bargains falls above this interval. We are 5% confident that the true proportion of shoppers who…
I need help with this please
I need help with this please
A survey organization, as part of the United States Census Bureau, conducts a yearly census similar to the one taken every ten years, but with a smaller percentage of participants. One of these surveys estimates with 90% confidence that the mean household income in the U.S. falls between $69,709 and $69,917. Find the point estimate for mean U.S. household income. (Enter your answer as a whole number.) x = Find the error bound for mean U.S. household income. (Enter your answer as a whole number.) EBM =

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