x: pH of Ground Water in 102 West Texas Wells 7.5 8.2 7.4 7.3 7.5 7.6...
x: pH of Ground Water in 102 West Texas Wells
|
7.5 |
8.2 |
7.4 |
7.3 |
7.5 |
7.6 |
7.9 |
7.7 |
7.8 |
7.0 |
|
7.6 |
7.9 |
7.7 |
8.2 |
7.4 |
7.6 |
7.4 |
7.6 |
7.2 |
7.1 |
|
7.3 |
7.2 |
7.4 |
7.5 |
7.9 |
8.2 |
7.4 |
7.2 |
7.5 |
7.2 |
|
7.3 |
7.0 |
7.2 |
7.3 |
7.3 |
7.2 |
7.3 |
7.0 |
8.4 |
7.7 |
|
7.6 |
7.7 |
7.5 |
7.8 |
7.2 |
7.6 |
8.1 |
7.9 |
7.4 |
8.1 |
|
8.6 |
7.3 |
8.2 |
7.7 |
8.0 |
7.0 |
8.2 |
7.1 |
7.5 |
8.2 |
|
7.2 |
7.9 |
8.5 |
7.2 |
7.1 |
7.0 |
7.8 |
7.3 |
7.3 |
7.4 |
|
7.1 |
7.6 |
7.6 |
7.6 |
7.7 |
7.1 |
7.1 |
7.1 |
8.8 |
8.1 |
|
7.1 |
7.3 |
7.4 |
8.7 |
7.2 |
7.0 |
8.2 |
7.8 |
7.8 |
7.3 |
|
7.4 |
8.1 |
7.5 |
7.5 |
7.0 |
8.1 |
7.1 |
8.1 |
7.0 |
7.1 |
|
8.1 |
8.8 |
Use the box-and-whisker plot to describe how the data are spread about the median. Are the pH values above the median more spread out than those below? Is this observation consistent with the skew of the histogram? (4marks)
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x: pH of Ground Water in 102 West Texas Wells
7.5
8.2
7.4
7.3
7.5
7.6...
In West Texas, water is extremely important. The following data represent ph levels in ground water...
In West Texas, water is extremely important. The following data represent ph levels in ground water for a random sample of 102 West Texas wells. A pH less than 7 Is adidic and a pH above 7 is alkaline. Scanning the data, you can see that water in this region tends to be hard (alkaline). Too high a pH means the water is unusable or needs expensive treatment to make it usable.t These data are also available for download at...
In West Texas, water is extremely important. The following data represent pH levels in ground water...
In West Texas, water is extremely important. The following data
represent pH levels in ground water for a random sample of 102 West
Texas wells. A pH less than 7 is acidic and a pH above 7 is
alkaline. Scanning the data, you can see that water in this region
tends to be hard (alkaline). Too high a pH means the water is
unusable or needs expensive treatment to make it usable.† These
data are also available for download at...
In West Texas, water is extremely important. The following data represent pH levels in ground water for a random...
In West Texas, water is extremely important. The following data represent pH levels in ground water for a random sample of 102 West Texas wells. A pH less than 7 is acidic and a pH above 7 is alkaline. Scanning the data, you can see that water in this region tends to be hard (alkaline). Too high a pH means the water is unusable or needs expensive treatment to make it usable.t These data are also available for download at...
Customer Waiting Times (in minutes) 7.4 6.9 6.9 6.8 7.4 6.6 7.7 6.5 7.2 7.9 8.7...
Customer Waiting Times (in minutes) 7.4 6.9 6.9 6.8 7.4 6.6 7.7 6.5 7.2 7.9 8.7 7.2 7.4 7.9 6.9 6.7 8.9 7.1 7.6 6.1 7.2 7.6 7.3 5.9 7.3 6.8 6.7 6.9 7.8 7.4 6.8 6.9 6.1 6.4 5.3 7.7 7.7 7.8 7.5 6.3 7.6 7.1 6.9 8.7 7.4 6.4 6.8 7.2 8.6 6.1 7.1 6.7 7.5 7.6 7.1 8.1 7.3 7.5 7.8 6.3 The accompanying data table includes weights (in grams) of a simple random sample of 40...
4. A n experiment was set up to compare the effect of different soil pH and calcium additives on ...
4. A n experiment was set up to compare the effect of different soil pH and calcium additives on the increase in trunk diameters for orange trees. Annual applications of elemental sulfur, gypsum, soda ash, and other ingredients were applied to provide pH value levels of 4, 5, 6, and 7. Three levels of a calcium supplement (100, 200, and 300 pounds per acre) were also applied. All factor-level combinations of these two variables were used in the experiment. At...
The data contained in the file named StateUnemp show the unemployment rate in March 2011 and...
The data contained in the file named StateUnemp show the unemployment rate in March 2011 and the unemployment rate in March 2012 for every state.† State Unemploy- ment Rate March 2011 Unemploy- ment Rate March 2012 Alabama 9.3 7.3 Alaska 7.6 7.0 Arizona 9.6 8.6 Arkansas 8.0 7.4 California 11.9 11.0 Colorado 8.5 7.8 Connecticut 9.1 7.7 Delaware 7.3 6.9 Florida 10.7 ...
1. The numbers below represent heights (in feet) of 3-year old elm trees. 5.1, 5.5, 5.8,...
1. The numbers below represent heights (in feet) of 3-year old elm trees. 5.1, 5.5, 5.8, 6.1, 6.2, 6.4, 6.7, 6.8, 6.9, 7.0, 7.2, 7.3, 7.3, 7.4, 7.5, 7.7, 7.9, 8.1, 8.1, 8.2, 8.3, 8.5, 8.6, 8.6, 8.7, 8.7, 8.9, 8.9, 9.0, 9.1, 9.3, 9.4, 9.6, 9.8, 10.0, 10.2, 10.2 Using the chi-square goodness-of-fit test, determine whether the heights of 3-year old elm trees are normally distributed, at the a = .05 significance level. Also, find the p- value.
1) Do you think there is a linear correlation between Movie Ratings and their Runtimes?
Movie Ratings8.78.97.67.27.28.18.86.88.79.08.57.98.79.19.07.28.47.57.79.09.38.76.99.28.49.29.09.18.98.29.48.38.17.99.18.78.67.88.47.8Movie runtimes201124136155131161110132116136911279612612913512411617012117511818911713610819589881221191161261151531431181291441321) Do you think there is a linear correlation between Movie Ratings and their Runtimes? Explain why or why not before doing any work!2) Is there a linear correlation between the data based on the correlation coefficient? Explain.3) Find the linear regression line and explain what it means in English.4) Perform a hypothesis test at the 5% level of significance to see if a correlation is significant.
of a 1 Pa (Pascal)-1.45 10-4 psi): (in MPa, where 5.6 7.2 7.3 6.1 8.1 6.8...
of a 1 Pa (Pascal)-1.45 10-4 psi): (in MPa, where 5.6 7.2 7.3 6.1 8.1 6.8 7.0 7.6 6.8 6.5 7.0 6.3 7.9 9.0 8.2 8.7 7.8 9.7 74 7.7 9.7 7.8 7.7 11.6 11.5 11.8 10.8 (a) Construct a stem-and-leaf display of the data. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Stems 6 13588 7 00234677889 8 127 9 077 10 9 11 368 What appears to be a representative...
The data on the below shows the number of hours a particular drug is in the...
The data on the below shows the number of hours a particular drug is in the system of 200 females. Develop a histogram of this data according to the following intervals: Follow the directions. Test the hypothesis that these data are distributed exponentially. Determine the test statistic. Round to two decimal places. (sort the data first) [0, 3) [3, 6) [6, 9) [9, 12) [12, 18) [18, 24) [24, infinity) 34.7 11.8 10 7.8 2.8 20 9.8 20.4 1.2 7.2...
In West Texas, water is extremely important. The following data represent ph levels in ground water for a random sample of 102 West Texas wells. A pH less than 7 Is adidic and a pH above 7 is alkaline. Scanning the data, you can see that water in this region tends to be hard (alkaline). Too high a pH means the water is unusable or needs expensive treatment to make it usable.t These data are also available for download at...
In West Texas, water is extremely important. The following data
represent pH levels in ground water for a random sample of 102 West
Texas wells. A pH less than 7 is acidic and a pH above 7 is
alkaline. Scanning the data, you can see that water in this region
tends to be hard (alkaline). Too high a pH means the water is
unusable or needs expensive treatment to make it usable.† These
data are also available for download at...
In West Texas, water is extremely important. The following data represent pH levels in ground water for a random sample of 102 West Texas wells. A pH less than 7 is acidic and a pH above 7 is alkaline. Scanning the data, you can see that water in this region tends to be hard (alkaline). Too high a pH means the water is unusable or needs expensive treatment to make it usable.t These data are also available for download at...
Customer Waiting Times (in minutes) 7.4 6.9 6.9 6.8 7.4 6.6 7.7 6.5 7.2 7.9 8.7 7.2 7.4 7.9 6.9 6.7 8.9 7.1 7.6 6.1 7.2 7.6 7.3 5.9 7.3 6.8 6.7 6.9 7.8 7.4 6.8 6.9 6.1 6.4 5.3 7.7 7.7 7.8 7.5 6.3 7.6 7.1 6.9 8.7 7.4 6.4 6.8 7.2 8.6 6.1 7.1 6.7 7.5 7.6 7.1 8.1 7.3 7.5 7.8 6.3 The accompanying data table includes weights (in grams) of a simple random sample of 40...
4. A n experiment was set up to compare the effect of different soil pH and calcium additives on the increase in trunk diameters for orange trees. Annual applications of elemental sulfur, gypsum, soda ash, and other ingredients were applied to provide pH value levels of 4, 5, 6, and 7. Three levels of a calcium supplement (100, 200, and 300 pounds per acre) were also applied. All factor-level combinations of these two variables were used in the experiment. At...
of a 1 Pa (Pascal)-1.45 10-4 psi): (in MPa, where 5.6 7.2 7.3 6.1 8.1 6.8 7.0 7.6 6.8 6.5 7.0 6.3 7.9 9.0 8.2 8.7 7.8 9.7 74 7.7 9.7 7.8 7.7 11.6 11.5 11.8 10.8 (a) Construct a stem-and-leaf display of the data. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Stems 6 13588 7 00234677889 8 127 9 077 10 9 11 368 What appears to be a representative...
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