Questions
Confirmed Cases, X Hospitalizations, Y 2605 482 1833 334 1532 321 1474 283 1465 431 1062...

Confirmed Cases, X Hospitalizations, Y 2605 482 1833 334 1532 321 1474 283 1465 431 1062 154 643 113 626 115 456 54 384 71 373 108 362 87 329 61 302 44 292 66 288 116 282 89 282 50 263 36 252 64 212 73 206 52 201 14 199 9 195 33 188 32 183 39 181 39 170 10 167 28 167 30 165 29 163 38 161 48 159 35 156 21 155 32 144 23 142 28 137 25 135 39 133 36 128 28 126 9 114 32 112 36 110 33 109 33 100 27 98 17 85 6 81 25 76 17 76 13 73 25 72 21 70 15 67 10 64 8 62 8 59 0 58 11 57 7 56 9 54 15 53 11 53 16 53 11 51 11 51 14 50 8 49 2 49 10 48 16 48 10 46 5 46 10 44 14 43 13 39 10 39 7 39 14 39 6 35 10 34 7 34 11 34 4 33 6 32 11 32 13 31 6 31 8 29 6 29 1 29 6 28 7 27 6 26 4 25 5 24 2 24 3 24 3 24 5 23 4 23 4 22 3 22 4 22 7 21 1 21 8 21 4 21 11 20 7 20 4 20 2 20 3 20 7 19 1 19 2 17 4 17 3 17 4 17 4 16 2 16 3 16 7 16 8 15 1 15 2 14 2 14 3 14 2 14 6 13 3 12 3 11 2 10 3 10 5 10 4 9 0 9 2 9 0 9 5 8 2 8 2 8 2 8 4 7 2 7 1 7 2 5 0 4 0 4 2 4 2 3 2 3 0 2 1 2 0 0 0 0 0

Use Data Analysis tool to regress Y on X.
Display the regression output on this sheet.
Interpret the coefficient on Confirmed Cases. Enter your answer in the next row.

Please use excel to complete this. can you send an excel file back

In: Statistics and Probability

100 mol of oxalic acid (H2C2O4) is burned (95% conversion) at atmospheric pressure and 99 °C...

100 mol of oxalic acid (H2C2O4) is burned (95% conversion) at atmospheric pressure and 99 °C with 10 % excess air so that the selectivity of CO2 relative to CO is 4. The chemical reaction equations for the combustion of oxalic acid are given as: Reaction 1 (desired): ??2??2??4+1 2??22????2+??2?? Reaction 2 (undesired): ??2??2??42????+1 2??2+??2??
a) Draw and completely label a flowsheet of this process, clearly assigning variable names to all known and unknown quantities. (6 pts) b) What are the molar flow rates of all species leaving the combustion chamber? (20 pts) c) What is the yield of CO2? (6 pts)
For parts d), e) and f), assume water is the only species that can condense and if you cannot solve for the molar flow rates of the product gas, assume equimolar compositions of the six product gas species.
d) What is the relative humidity of the product gas? (4 pts) e) What is the dew-point pressure of the product gas? (6 pts) f) What is the dew-point temperature of the product gas, to the nearest 1 °C? (6 pts

In: Other

Sometimes the extent to which two groups differ is quite obvious. For example, if one group...

Sometimes the extent to which two groups differ is quite obvious. For example, if one group of individuals has an average of 20 speeding tickets, while another group has an average of 2, we can be pretty sure that the difference is statistically significant. But sometimes it is less clear. What if one group had an average of 10, while the other had an average of 7? Z-tests provide a way to determine if differences between means are enough to be statistically significant.

Freshmen and Seniors

For this assignment, you will conduct a two-sample z-test to determine if freshmen and seniors have a significantly different number of speeding tickets. Using the data provided below, conduct a two-sample z-test.

Speeding Tickets for Freshmen and Seniors
Freshmen Seniors
4 1
3 2
5 1
4 1
6 0
3 2
2 1
4 0
5 1
4 2

Are the results statistically significant? What does this imply for freshman and seniors?

In: Statistics and Probability

Sometimes the extent to which two groups differ is quite obvious. For example, if one group...

Sometimes the extent to which two groups differ is quite obvious. For example, if one group of individuals has an average of 20 speeding tickets, while another group has an average of 2, we can be pretty sure that the difference is statistically significant. But sometimes it is less clear. What if one group had an average of 10, while the other had an average of 7? Z-tests provide a way to determine if differences between means are enough to be statistically significant.

Freshmen and Seniors

For this assignment, you will conduct a two-sample z-test to determine if freshmen and seniors have a significantly different number of speeding tickets. Using the data provided below, conduct a two-sample z-test.

Speeding Tickets for Freshmen and Seniors
Freshmen Seniors
4 1
3 2
5 1
4 1
6 0
3 2
2 1
4 0
5 1
4 2

Are the results statistically significant? What does this imply for freshman and seniors?

In: Statistics and Probability

CS 400 Assignment 5 Recursive/Backtracking: Generating Permutations WRITE CODE IN C++ PROGRAMMING LANGUAGE WITH COMMENTS INCLUDED...

CS 400 Assignment 5
Recursive/Backtracking: Generating Permutations

WRITE CODE IN C++ PROGRAMMING LANGUAGE WITH COMMENTS INCLUDED

Description: 
Mimic the code for N-queen problem (https://introcs.cs.princeton.edu/java/23recursion/Queens.java.html),
develop a program that generates all permutations for the set {1, 2, 3, 4, 5}.
The output should contain all 5! = 120 permutations. 

Output Sample: 
P#1: 1 2 3 4 5 
P#2: 1 2 3 5 4
P#3: 1 2 4 3 5
...
P#120: 5 4 3 2 1

Hint:
- Thoroughly study the N-queen problem first. 
- The code for N-queen is very close to the code generating permutations, just some helper functions away. 
- Keep the structure of the enumerate() function. You may change the function head to take in the array size. 
- Implement printPermutation() function and use it to replace printQueens().
- Implement isConsistent() function for permutation check. This check should be easier than N-queen consistent check. 

File_name: 
- permutation.cpp

Grading: 
- compilable and meaningful attemps: 20 points. 
- structure of enumerate(): 30 points
- helper functions: 40 points.
- comments, file names and indentation: 10 points. 

In: Computer Science

1. triple integral... first form 0 to pi, second from 0 to pi/3, third to sec(phi)...

1. triple integral... first form 0 to pi, second from 0 to pi/3, third to sec(phi) to 2 of p^2*sin(phi) dp d(phi) d(theta)

2. triple integral... first form 0 to pi, second from -sqrt(3) to sqrt(3), third to 1 to sqrt(4-r^2) of r dz dr d(theta)

3. triple integral... first form 0 to pi/2, second from 0 to sqrt(3), third to 1 to sqrt(4-r^2) of r dz dr d(theta)

4. triple integral... first form 0 to pi, second from 0 to sqrt(3), third to 1 to sqrt(4-r^2) of r dz dr d(theta)

5. triple integral... first form 0 to pi, second from 0 to pi/3, third to 1 to 2 of p^2*sin(phi) dp d(phi) d(theta)

6. triple integral... first form 0 to pi/2, second from 0 to pi/6, third to sec(phi) to 2 of p^2*sin(phi) dp d(phi) d(theta)

In: Math

Differentiate each. give reasonably simplified answers. Box ANSERS. (a)=ln[(x^9*(5x+1)^4*(11x+2))/((8x+9)(3x^5-2x+1))] (b) y=log[((8x+3)^2 * (x^3+5x^2-9x+1))/(7x+3)^5] (c) Given f(x)=(4x)^10x^3,...

Differentiate each. give reasonably simplified answers. Box ANSERS.

(a)=ln[(x^9*(5x+1)^4*(11x+2))/((8x+9)(3x^5-2x+1))]

(b) y=log[((8x+3)^2 * (x^3+5x^2-9x+1))/(7x+3)^5]

(c) Given f(x)=(4x)^10x^3, find f'(x)

(d) Differentiate f(x)=4x^10x^3, find f'(x)

In: Math

A legal researcher wanted to measure the effect of the length of a criminal trial on...

A legal researcher wanted to measure the effect of the length of a criminal trial on the length of jury deliberation. He observed in a sample of 10 randomly selected courtroom trials the following data on length of trial (in days) and length of jury deliberation (in hours). Using the table below, complete the followiwng steps: I have to work the problem out. no exel

Step 1: Calculate the regression and Y-intercept by calculating N, the sum of X, the sum of Y, the sum of X-squared, the sum of Y-squared, and the sum of XY.

Step 2: Calculate the mean of X and the mean of Y.

Step 3: Calculate SSx, SSy, and SP

Step 4: Determine the regression line

Step 5: Predict the length of jury deliberation for a recently completed trial that lasts six days.

Step 6: Find the coefficient of determination and nondetermination. What do they mean?

Step 7: Construct and analysis of variance table.

X (Days) Y(Hours)
2 4
7 12
4 6
1 4
1 1
3 4
2 7
5 2
2 4
3 6

In: Statistics and Probability

A legal researcher wanted to measure the effect of the length of a criminal trial on...

A legal researcher wanted to measure the effect of the length of a criminal trial on the length of jury deliberation. He observed in a sample of 10 randomly selected courtroom trials the following data on length of trial (in days) and length of jury deliberation (in hours). Using the table below, complete the followiwng steps: I have to work the problem out. no exel

Step 1: Calculate the regression and Y-intercept by calculating N, the sum of X, the sum of Y, the sum of X-squared, the sum of Y-squared, and the sum of XY.

Step 2: Calculate the mean of X and the mean of Y.

Step 3: Calculate SSx, SSy, and SP

Step 4: Determine the regression line

Step 5: Predict the length of jury deliberation for a recently completed trial that lasts six days.

Step 6: Find the coefficient of determination and nondetermination. What do they mean?

Step 7: Construct and analysis of variance table.

X (Days) Y(Hours)
2 4
7 12
4 6
1 4
1 1
3 4
2 7
5 2
2 4
3 6

In: Statistics and Probability

Isabel Briggs Myers was a pioneer in the study of personality types. The personality types are...

Isabel Briggs Myers was a pioneer in the study of personality types. The personality types are broadly defined according to four main preferences. Do married couples choose similar or different personality types in their mates? The following data give an indication.

Similarities and Differences in a Random Sample of 375 Married Couples
Number of Similar Preferences     Number of Married Couples
All four 27
Three 124
Two 118
One 70
None 36

Suppose that a married couple is selected at random.

1(a) Use the data to estimate the probability that they will have 0, 1, 2, 3, or 4 personality preferences in common. (For each answer, enter a number. Enter your answers to 2 decimal places.)

0 1 2 3 4

1(b)  Do the probabilities add up to 1? Why should they?

a) Yes, because they do not cover the entire sample space.

b) No, because they do not cover the entire sample space.     

c) Yes, because they cover the entire sample space.

d) No, because they cover the entire sample space.


What is the sample space in this problem?

a) 0, 1, 2, 3 personality preferences in common

b) 1, 2, 3, 4 personality preferences in common     

c) 0, 1, 2, 3, 4, 5 personality preferences in common

d) 0, 1, 2, 3, 4 personality preferences in common

(2). A particular lake is known to be one of the best places to catch a certain type of fish. In this table, x = number of fish caught in a 6-hour period. The percentage data are the percentages of fishermen who caught x fish in a 6-hour period while fishing from shore.

x 0 1 2 3 4 or more
% 43% 35% 15% 6% 1%

(a) Convert the percentages to probabilities and make a histogram of the probability distribution. (Select the correct graph.)

     

2. (b) Find the probability that a fisherman selected at random fishing from shore catches one or more fish in a 6-hour period. (Enter a number. Round your answer to two decimal places.) =______

2(c) Find the probability that a fisherman selected at random fishing from shore catches two or more fish in a 6-hour period. (Enter a number. Round your answer to two decimal places.) =_____

(d) Compute μ, the expected value of the number of fish caught per fisherman in a 6-hour period (round 4 or more to 4). (Enter a number. Round your answer to two decimal places.)
μ = ____fish

2(e) Compute σ, the standard deviation of the number of fish caught per fisherman in a 6-hour period (round 4 or more to 4). (Enter a number. Round your answer to three decimal places.)
σ = _____ fish

In: Statistics and Probability