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QUESTION 6 2 points Save Answer A client wants to invest money in real estate in...
Hope you can answer them, thank you QUESTION 13 Your client has a gut feeling (she...
Hope you can answer them, thank you QUESTION 13 Your client has a gut feeling (she uses the force) that the average house price in Lincoln Dark is $450K. You decide to use the previously collected data. Your sample size is 25 houses. The average based on the sample is $500K. The sample standard deviation is $100K. Test the hypothesis that the average house price in Lincoln Dark is $450K against the alternative that it is not. Use alpha 10%....
An economist would like to estimate the 99% confidence interval for the average real estate taxes...
An economist would like to estimate the 99% confidence interval for the average real estate taxes collected by a small town in California. In a prior analysis, the standard deviation of real estate taxes was reported as $1,520. [You may find it useful to reference the z table.] What is the minimum sample size required by the economist if he wants to restrict the margin of error to $660? (Round intermediate calculations to at least 4 decimal places and "z"...
Question 15 (0.75 points) Recall the previous question where the real estate firm wants to see...
Question 15 (0.75 points) Recall the previous question where the real estate firm wants to see if the mean price of homes in 2010 have differed from the mean price in 2008. Based on your P-value, what is the conclusion if we test at the 0.05 level of significance? There is evidence to conclude that the mean price of homes in 2010 differ from the mean price in 2008. There is evidence to conclude that the mean price of homes...
Question of 6 Question 1 5 points Save Answer You want to estimate the mean salary...
Question of 6 Question 1 5 points Save Answer You want to estimate the mean salary of people in a country, so you take a random sample of 121 people from around the country. The sample had an average salary of 545000 dollars with population standard deviation of 50000 dollars Calculate the Upper Limit of the confidence Interval for the mean salary of the people in the country Reminders You only need to calculate the Upper Limit of the confidence...
(5 points) The Highway Safety Department wants to study the driving habits of individuals. A sample...
(5 points) The Highway Safety Department wants to study the driving habits of individuals. A sample of 38 cars traveling on a particular stretch of highway revealed an average speed of 68.9 miles per hour with a standard deviation of 5.9 miles per hour. Round to 4 decimal places. 1.Calculate a 99% confidence interval for the true mean speed of all cars on this particular stretch of highway. ( , ) 2. Based on the confidence interval do you think...
2. (20 points) A bank has been receiving complaints from real estate agents that their customers...
2. (20 points) A bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. The bank prides itself on its mortgage application process and decides to investigate the claims. The bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days) 5.7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10,...
QUESTION 5 0.5 points Save Answer The sample mean being negative shows that for the 35...
QUESTION 5 0.5 points Save Answer The sample mean being negative shows that for the 35 selected days, the forecasts were higher, on average, than the actual temperatures. Based on the confidence interval, is it safe to state that the forecasts are consistently higher than the actual temperatures? Yes No QUESTION 6 1 points Save Answer Explain your answer to Question #5. T T T T ParagraphArial 3 (12pt) -- Path: p words:0
please answer all of the following thank you so much!! Question 14 1 points Save Answer...
please answer all of the following thank you so much!!
Question 14 1 points Save Answer Pile et al. (1974) concluded that "reading an hour a day significantly increased high school student SAT scores, relative to a control that just played video games an hour a day, (13) - 4.90, p < .05, one tailed." What was their t-critical for the region of rejection Question 14 of 24 Question 15 If we are given the following information: M - 92,...
Billy’s Fizzy Flavours Inc. wants to estimate the average volume per can of Crazy 88 Cola with 90% confidence.
QUESTION 2. Billy’s Fizzy Flavours Inc. wants to estimate the average volume per can of Crazy 88 Cola
with 90% confidence.
(a) In practice, the soft drink producer does not know the population mean or population standard deviation
of the volume per can. However, for the purpose of this question we will assume the volume per can is
normally distributed with a mean of 353 mL and a standard deviation of 2 mL. Use this information and the
Excel procedure...
Question 1 (50 pts): Suppose that a client of yours measure the heights (in inches) of...
Question 1 (50 pts): Suppose that a client of yours measure the heights (in inches) of n - 30 wheats grown at locations of various elevations (measured as meters above sea levels). Af- ter some discussion, you decided to fit a linear regression of wheat heights (denoted as yi) on the elevations of the locations (denoted as zi) as follows where ei, E2, . . . , En are i.i.d. errors with Elei] 0 and var(G) σ2. You calculated some...
Question 15 (0.75 points) Recall the previous question where the real estate firm wants to see if the mean price of homes in 2010 have differed from the mean price in 2008. Based on your P-value, what is the conclusion if we test at the 0.05 level of significance? There is evidence to conclude that the mean price of homes in 2010 differ from the mean price in 2008. There is evidence to conclude that the mean price of homes...
Question of 6 Question 1 5 points Save Answer You want to estimate the mean salary of people in a country, so you take a random sample of 121 people from around the country. The sample had an average salary of 545000 dollars with population standard deviation of 50000 dollars Calculate the Upper Limit of the confidence Interval for the mean salary of the people in the country Reminders You only need to calculate the Upper Limit of the confidence...
2. (20 points) A bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. The bank prides itself on its mortgage application process and decides to investigate the claims. The bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days) 5.7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10,...
QUESTION 5 0.5 points Save Answer The sample mean being negative shows that for the 35 selected days, the forecasts were higher, on average, than the actual temperatures. Based on the confidence interval, is it safe to state that the forecasts are consistently higher than the actual temperatures? Yes No QUESTION 6 1 points Save Answer Explain your answer to Question #5. T T T T ParagraphArial 3 (12pt) -- Path: p words:0
please answer all of the following thank you so much!!
Question 14 1 points Save Answer Pile et al. (1974) concluded that "reading an hour a day significantly increased high school student SAT scores, relative to a control that just played video games an hour a day, (13) - 4.90, p < .05, one tailed." What was their t-critical for the region of rejection Question 14 of 24 Question 15 If we are given the following information: M - 92,...
Question 1 (50 pts): Suppose that a client of yours measure the heights (in inches) of n - 30 wheats grown at locations of various elevations (measured as meters above sea levels). Af- ter some discussion, you decided to fit a linear regression of wheat heights (denoted as yi) on the elevations of the locations (denoted as zi) as follows where ei, E2, . . . , En are i.i.d. errors with Elei] 0 and var(G) σ2. You calculated some...
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