12.The following means, standard deviations and correlations arefound forX1 == seed hay crop in cwts. per acre,X2 = spring rainfall in inches,X3 = accumulated temperature above 42° F in spring, in a certaindistrict of England during twenty years.%3D|3DX = 28-02, 01=4-42, r12 =+ 0-80,0.40,X2 = 4.91, 02 = 1·10, r13 =--- Ò -56.%3DX3 = 594, ơ3 = 85, r23 = - 0-56.%3DFind the partial correlations and the regression equations for hay-cropon spring rainfall and accumulated temperature,

Answered: Image /qna-images/answer/f78ebbc3-c396-4321-a5dd-08cb646ed80b.jpg

Answered: 12. The following means, standard…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Assume that the average time for train journeys between London and Brighton is 157 minutes with a standard deviation of 12 minutes. Assume further that a certain journey took 130 minutes. Calculate the z-value for this trip. Enter your answer with two decimals and remember to use commas as decimals.What is the Z-value here?
The average age of senators in the 108th Congress was 62 years. If the standard deviation was 12.5 years, find the z-scores corresponding to the oldest and youngest senators of age 86 and 46. Round z scores to two decimal places.
cise 6. Remember, the mean and standard deviation of the n speed of 23.84 mph, with 40 hours describing weights of the yearling Angus steers in Exer- 16. Temperatures A town's January high temperatures a standard deviation of 3.56 mph. One car's z-score was a weight of 1152 pounds with 14. Unusual steers? Suppose a Normal model is useful for weights were 1152 lbs and 84 lbs. Which would be more in July the mean high temperature is 74° and the standard deviation is 8°. In which month is it more average 36°F with a standard deviation of 10°, v 11. Mensa sometimes classi points, wha a 22. More mean of 100 and a standa answ ar they a) I te in Exercise 6 had a mean b) A c) cise 7 were traveling at a mean 23. IQ: ans going? +3.2. How fast was that one a) b) c) unusual, a steer weighing 1000 pounds or one 1250 pounds? 15. Unusual cars? Suppose a Normal model is useful for describing speeds of Stanford cars in Exercise 7. Remem- ber, the mean and standard deviation of the speeds were 23.84 mph…
please find the test statistic find the p-value for the found test statistic round the p-value to the four decimal places as needed.
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Use the formula to find the standard error of the distribution of differences in sample means, x⎯⎯1−x⎯⎯2x¯1-x¯2.Samples of size 100 from Population 1 with mean 95 and standard deviation 10 and samples of size 80 from Population 2 with mean 76 and standard deviation 17Round your answer for the standard error to two decimal places.standard error =
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Biological oxygen demand (BOD) is a pollution index that is monitored in the treated effluent of paper mills. A certain paper mill has taken 31 samples over the past 3 months. The mean and standard deviation for the sample data are 3.42 and 0.728 ppm respectively. The mill would like to see if this sample indicates that the true average BOD in their treated effluent exceeds the targeted 3.00 ppm. Let ? = 0.05. A) The test statistic, (ttest), for this data set is: Note: Round your answer to the nearest hundredth.B) The p-value is: C) The statistical decision and corresponding English interpretation for this study are: Fail to reject Ha: conclude that the true BOD in treated effluent exceeds 3 ppmFail to reject Ho: we cannot conclude that the true BOD in treated effluent exceeds 3 ppm Reject Ha: we cannot conclude that the true BOD in treated effluent exceeds 3 ppmReject Ho: conclude that the true BOD in treated effluent exceeds 3 ppm
Pyramid Lake is on the Palute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a tells you that the average length of trout caught in Pyramid Lake Is mu = 19 Inches. Howevera survey reported that of a random sample of 46 fish caught, the mean length was overline x =18.6 lnch , with estimated standard s = 2.7 inches. these data Indicate that the average length of a trout caught in Pyramid Lake less than mu = 19 inches? Use a=0.05 Please answer ONLY parts D & E
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I hope the solution is to choose the correct one only, no more

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