The relationship between the number of beers consumed in two hours (x) and blood alcohol content (y) was studied in 26 male college students by using least squares regression. The students studied consumed between 1 and 4 beers in the study. The following regression equation was obtained from this study:
yˆ=−0.0127+0.0180xy^=-0.0127+0.0180x
Answer the following (each is equally weighted):
1. Identify the explanatory and response variables.
2. According to the line of best fit, what would be the predicted blood alcohol content after consuming 3 beers in two hours? Round your answer to two decimal places, as needed.
3. Would it be appropriate to use this model to predict the blood alcohol content after seven beers? Why or why not (remember to include appropriate terminology).
In: Statistics and Probability
The followings table gives information on GPAs (grade point average) and starting salaries (rounded to the nearest thousand dollars) of seven recent college graduates.
| GPA | 2.90 | 3.81 | 3.20 | 2.42 | 3.94 | 2.05 | 2.25 |
| Starting Salary | 23 | 28 | 23 | 21 | 32 | 19 | 22 |
1) Predict the starting salary for a student graduating with a 3.60 GPA. (Enter your answer in thousands of dollars rounded to two decimal places. Such as 12,345.67)
2) Predict the starting salary for a student graduating with a 2.10 GPA. (Enter your answer in thousands of dollars rounded to two decimal places. Such as 12,345.67)
3) Predict the starting salary for a student graduating with a 3.95 GPA. (Enter your answer in thousands of dollars rounded to two decimal places. Such as 12,345.67)
In: Statistics and Probability
The followings table gives information on GPAs (grade point average) and starting salaries (rounded to the nearest thousand dollars) of seven recent college graduates.
| GPA | 2.90 | 3.81 | 3.20 | 2.42 | 3.94 | 2.05 | 2.25 |
| Starting Salary | 23 | 28 | 23 | 21 | 32 | 19 | 22 |
1) Predict the starting salary for a student graduating with a 3.60 GPA. (Enter your answer in thousands of dollars rounded to two decimal places. Such as 12,345.67)
2) Predict the starting salary for a student graduating with a 2.10 GPA. (Enter your answer in thousands of dollars rounded to two decimal places. Such as 12,345.67)
3) Predict the starting salary for a student graduating with a 3.95 GPA. (Enter your answer in thousands of dollars rounded to two decimal places. Such as 12,345.67)
In: Statistics and Probability
Run two different multiple regressions using excel. One should include two of the three idepenedent variables and the other should include all three variables. What are the regession equations?
| Years | Weekend | Daily Tour Income | Daily Gross Revenue | Number of Tourists |
| 1 | Friday | 3378 | 4838.95 | 432 |
| 1 | Saturday | 1198 | 3487.78 | 139 |
| 1 | Sunday | 3630 | 4371.3 | 467 |
| 2 | Friday | 4550 | 6486.48 | 546 |
| 2 | Saturday | 2467 | 3437.39 | 198 |
| 2 | Sunday | 3593 | 4571.43 | 452 |
| 3 | Friday | 898 | 2515.15 | 119 |
| 3 | Saturday | 2812 | 5462.11 | 342 |
| 3 | Sunday | 2650 | 5498.89 | 321 |
| 4 | Friday | 3230 | 5071.14 | 402 |
| 4 | Saturday | 4798 | 8051.43 | 523 |
| 4 | Sunday | 3253 | 4291.95 | 353 |
| 5 | Friday | 2848 | 4545 | 347 |
| 5 | Saturday | 4632 | 8865.01 | 534 |
| 5 | Sunday | 3767 | 4710.64 | 412 |
| 6 | Friday | 4499 | 10752.74 | 529 |
| 6 | Saturday | 3868 | 6435.63 | 422 |
| 6 | Sunday | 2489 | 3389.37 | 288 |
| 7 | Friday | 3448 | 6129.58 | 367 |
| 7 | Saturday | 3612 | 7357.12 | 406 |
| 7 | Sunday | 1937 | 2121.76 | 216 |
| 8 | Friday | 2548 | 4738.86 | 294 |
| 8 | Saturday | 2833 | 4141.98 | 317 |
| 8 | Sunday | 2214 | 4878.35 | 284 |
| 9 | Friday | 1520 | 4102.49 | 169 |
| 9 | Saturday | 4322 | 8639.55 | 462 |
| 9 | Sunday | 1833 | 3946.71 | 203 |
| 10 | Friday | 2271.63 | 4236.31 | 235 |
| 10 | Saturday | 2407.88 | 5613.27 | 266 |
| 10 | Sunday | 1772.17 | 5580.17 | 182 |
| 11 | Friday | 1494 | 3833.52 | 177 |
| 11 | Saturday | 1998 | 3986.57 | 213 |
| 11 | Sunday | 1388 | 2721.56 | 165 |
| 12 | Friday | 1925 | 3952.19 | 190 |
| 12 | Saturday | 2695 | 6281.3 | 243 |
| 12 | Sunday | 1525 | 3356.14 | 172 |
| 13 | Friday | 1725 | 3822.59 | 187 |
| 13 | Saturday | 2450 | 4141.75 | 253 |
| 13 | Sunday | 1407.5 | 3312.41 | 173 |
| 14 | Friday | 2394 | 4571.5 | 242 |
| 14 | Saturday | 3012 | 6363.3 | 311 |
| 14 | Sunday | 2058 | 3502.22 | 239 |
| 15 | Friday | 2427 | 5881.13 | 267 |
| 15 | Saturday | 3189 | 10409.13 | 336 |
| 15 | Sunday | 2109 | 4955.05 | 178 |
| 16 | Friday | 2244 | 4347.41 | 184 |
| 16 | Saturday | 3195 | 4935.17 | 274 |
| 16 | Sunday | 1017 | 3486.27 | 114 |
| 17 | Friday | 3470 | 6290.99 | 325 |
| 17 | Saturday | 5323 | 13132.55 | 478 |
| 17 | Sunday | 2345 | 5014.45 | 242 |
| 18 | Friday | 1671 | 2740.23 | 177 |
| 18 | Saturday | 2321.94 | 4423.31 | 246 |
| 18 | Sunday | 1542 | 2650.48 | 182 |
In: Statistics and Probability
Run two different multiple regressions using excel. One should include two of the three idepenedent variables and the other should include all three variables. The first multiple regression equation is Gross Revenue = 766.981 + 2.977*Daily Tour Income - 12.31*Number of Tourists.
1. What is the second multiple regression equation?
Would adding dummy variables for the three days for my second regression work? l need 2 dummy variables since I have 3 categories (days, in this case). What would the equation look like? What's the regression table using excel?
| Years | Weekend | Daily Tour Income | Daily Gross Revenue | Number of Tourists |
| 1 | Friday | 3378 | 4838.95 | 432 |
| 1 | Saturday | 1198 | 3487.78 | 139 |
| 1 | Sunday | 3630 | 4371.3 | 467 |
| 2 | Friday | 4550 | 6486.48 | 546 |
| 2 | 2467 | 3437.39 | 198 | |
| 2 | Sunday | 3593 | 4571.43 | 452 |
| 3 | Friday | 898 | 2515.15 | 119 |
| 3 | Saturday | 2812 | 5462.11 | 342 |
| 3 | Sunday | 2650 | 5498.89 | 321 |
| 4 | Friday | 3230 | 5071.14 | 402 |
| 4 | Saturday | 4798 | 8051.43 | 523 |
| 4 | Sunday | 3253 | 4291.95 | 353 |
| 5 | Friday | 2848 | 4545 | 347 |
| 5 | Saturday | 4632 | 8865.01 | 534 |
| 5 | Sunday | 3767 | 4710.64 | 412 |
| 6 | Friday | 4499 | 10752.74 | 529 |
| 6 | Saturday | 3868 | 6435.63 | 422 |
| 6 | Sunday | 2489 | 3389.37 | 288 |
| 7 | Friday | 3448 | 6129.58 | 367 |
| 7 | Saturday | 3612 | 7357.12 | 406 |
| 7 | Sunday | 1937 | 2121.76 | 216 |
| 8 | Friday | 2548 | 4738.86 | 294 |
| 8 | Saturday | 2833 | 4141.98 | 317 |
| 8 | Sunday | 2214 | 4878.35 | 284 |
| 9 | Friday | 1520 | 4102.49 | 169 |
| 9 | Saturday | 4322 | 8639.55 | 462 |
| 9 | Sunday | 1833 | 3946.71 | 203 |
| 10 | Friday | 2271.63 | 4236.31 | 235 |
| 10 | Saturday | 2407.88 | 5613.27 | 266 |
| 10 | Sunday | 1772.17 | 5580.17 | 182 |
| 11 | Friday | 1494 | 3833.52 | 177 |
| 11 | Saturday | 1998 | 3986.57 | 213 |
| 11 | Sunday | 1388 | 2721.56 | 165 |
| 12 | Friday | 1925 | 3952.19 | 190 |
| 12 | Saturday | 2695 | 6281.3 | 243 |
| 12 | Sunday | 1525 | 3356.14 | 172 |
| 13 | Friday | 1725 | 3822.59 | 187 |
| 13 | Saturday | 2450 | 4141.75 | 253 |
| 13 | Sunday | 1407.5 | 3312.41 | 173 |
| 14 | Friday | 2394 | 4571.5 | 242 |
| 14 | Saturday | 3012 | 6363.3 | 311 |
| 14 | Sunday | 2058 | 3502.22 | 239 |
| 15 | Friday | 2427 | 5881.13 | 267 |
| 15 | Saturday | 3189 | 10409.13 | 336 |
| 15 | Sunday | 2109 | 4955.05 | 178 |
| 16 | Friday | 2244 | 4347.41 | 184 |
| 16 | Saturday | 3195 | 4935.17 | 274 |
| 16 | Sunday | 1017 | 3486.27 | 114 |
| 17 | Friday | 3470 | 6290.99 | 325 |
| 17 | Saturday | 5323 | 13132.55 | 478 |
| 17 | Sunday | 2345 | 5014.45 | 242 |
| 18 | Friday | 1671 | 2740.23 | 177 |
| 18 | Saturday | 2321.94 | 4423.31 | 246 |
| 18 | Sunday | 1542 | 2650.48 | 182 |
In: Statistics and Probability
Suppose that we have two bags each containing black and white balls. One bag contains two times as many white balls as black balls. The other bag contains two times as many black balls as white. Suppose we choose one of these bags at random. For this bag we select five balls at random, replacing each ball after it has been selected. The result is that we find all balls are white balls. What is the probability that we were using the bag with mainly black balls?
In: Statistics and Probability
Assume a two-person, two-good economy. Holding the price of one commodity as numéraire, describe analytically how the price mechanism coordinates the economy. Derive Walras’ law for the two-good economy and discuss its policy implications.
In: Economics
Set up 4 different configurations of charges: two opposite charges, two lines of opposite charges, one cluster of charges and a line of charges, and one configuration of your choice.
For each configuration do the following:
a) Sketch on a separate piece of paper the configuration. Use the whole page.
b) Sketch out at least 10 different equipotential lines by using the voltage probe. (label them)
c) Sketch out at least 10 different electric field lines. (crossing at right angles to the equipotential lines and running from the high to low charge.
d) Mark at 3 places on 3 of the E-field lines the strength of the E-field.
In: Physics
3. One year treasuries yield 5% and two year Treasuries yield
5.50%. You have a two year time horizon. You are considering a one
year roll of Treasuries. What would you have to get in the second
year to beat just holding the two year Treasury? (Carry your answer
out three decimal places.)
4. What are the components of a bond?
5. Assume Capital Inc has an outstanding 15 year bond with a 10%
coupon (annual pay) with a par value of $1000. The market yield for
this bond is 15%. What is the price/present value of the bond? If
the bond is callable in ten years at 102 what would the yield to
the call be given the price you calculated above.
In: Finance
The preparatory phase of glycolysis converts one 6-carbon sugar into two 3-carbon sugars and uses two molecules of ATP while the payoff phase of glycolysis converts those two 3-carbon sugars into 2 molecules of pyruvate and generates two molecules of NADH and four molcules of ATP.
True
False
Which of the following best characterizes the termination of transcription?
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The sequence signals for termination of transcription are contained within the transcript itself. |
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The transcriptional termination sequence is a site in the DNA approximately 30 base pairs downstream of the actual termination point. |
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Transcription terminates when the polymerase reaches the promoter of the adjacent downstream gene. |
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Transcription terminates when the polymerase reaches the start codon of the adjacent downstream gene. |
Which of the following best describes the TATA box?
|
It is a sequence in the promoter region of genes that marks transcription start sites. |
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It is a sequence in chromosomes that marks replication origins. |
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It is a sequence in primary transcripts that marks cleavage and polyadenylation sites. |
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It is a sequence in mRNAs that marks translation start sites. |
De novo fatty acid synthesis is primarily regulated by phosphorylation of acetyl-CoA carboxylase, which is stimulated by glucagon and/or epinepherine.
True
False
In: Biology