Option C is Correct
Prediction interval gives a range of values of new observation for the specfic values of X but confidence interval gives a range of values of the mean of Y and Prediction interval are always narrower than Prediction interval
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Suppose that you have in your possession bivariate data giving birthrate and life expectancy information for a random sample of 15 countries. For each of the countries, the data give both x, the number of births per one thousand people in the country's population, and y, the country's female life expectancy in years. The least squares regression equation computed from your data is y = 84.06 -0.51x. Suppose that you're predicting the female life expectancy for a country whose birthrate...
3.) Best predicted job performace rating, explain how you found the job performance rating. 4. Contruct a 98% confidence interval for the mean amount of juice in all such bottles. Use the given data to find the best predicted value of the response variable. Points: 5 3) The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is y = 11.7 +1.02x. Ten pairs of data were used to obtain the equation....
you are given For a random sample of size 13 from a normal distribution with mean the following regarding the observations: 3 (xi – ī)2 = 77.8 The width of the 100k% confidence interval for u is 2.7005. Let to be the critical value of a t random variable with v degrees of freedom. The following table lists values of ta, for specific combinations of a and v: v = 12 v = 13 a=0.1 1.356 1.350 a= 0.07 1...
ROA Efficiency Ratio Total RiskBased Capital 1.02 66.32 13.15 0.73 61.73 12.50 0.97 55.14 15.44 1.40 67.44 18.00 3.75 76.32 17.57 0.63 80.33 15.69 1.35 58.07 14.80 1.32 57.05 13.16 0.87 58.22 14.35 1.17 52.55 13.94 4.41 86.31 10.96 1.75 55.68 17.42 1.12 62.30 17.88 1.34 54.66 14.76 1.55 64.99 13.30 1.07 68.31 18.28 1.14 71.41 15.29 1.14 74.06 14.70 1.74 72.02 22.27 0.96 59.25 13.21 PLEASE USE THE NUMBERS FROM PART A. Please show ALL excel formulas in a...
11. For a random sample of size 13 from a normal distribution with mean u, you are given the following regarding the observations: (ti – 1)2 = 77.8 The width of the 100% confidence interval for u is 2.7005. Let tay be the critical value of a t random variable with v degrees of freedom. The following table lists values of tay for specific combinations of a and v: v = 12 v=13 a=0.1 1.356 1.350 a= 0.07 1.580 1.572...
Economists wish to look at the relationship between the price of regular unleaded gasoline in the U.S. (units=$/gallon) and the acquisition cost of OPEC crude oil (units=$10/barrel). Summary measures for a random sample of 13 years are given below. n= 13 ?yi= 31.5 ?y2i= 80.95 ?xi= 60.5 ?x2i= 329.67 ?xiyi= 156.98 What is the Lower and upper end points for 95% confidence interval for the mean value of y when x0=2.9 (with appropriate units)? . If x0=1.7, what is the...
The AAA Club of a small town Emergency Road Service (ERS) to its members. By tracking the weather conditions the Club can divert resources from other Club activities to the ERS for projected peak days. This will lead to better services for Club members and also greatly reduces stress on the Club staff. So they want to determine if the number of calls the Club will receive in a day is predictable from the weather forecast given on the previous...
ULA Fiduce IW 9. The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school, and study habits of students. Scores range from 0 to 200. A selective private college gives the SSHA to a simple random sample of both male and female first-year students to study the difference in mean attitudes towards school and study habits between men and women. The data for men and women: n 5 Men 20 121.3...
Please explain thank you. 6. Confidence and prediction Interval estimates Aa Aa You are a starting pitcher in the major leagues. It's January 2008, and you are in the process of negotiating your salary for the 2008 season. You hire a statisticlan to help you with your negotiations. She specifies the folowing simple linear regression model: where y2008 salary (in millions of dollars), and x performance during the regular 2007 season Then she selects a random sample of 50 major...
only do question f!!!!!! please be specific with step by step to use minitab to graphing 1. )The accompanying table gives the dry weights (Y) of 11 chick embryos ranging in age from 6 to 16 days (X). Also given in the table are the values of the common loga- rithms of the weights (Z). Age (X) (days) Dry Weight (M Logio Dry Weight (Z) 1.538-1.284 Age (X) (days) Dry Weight( 10 0.181 .03-0.742 -0.583 7 0.029 0.052 0.079 0.125...