Questions
The relationship between the number of beers consumed in two hours (x) and blood alcohol content...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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?

The sequence signals for termination of transcription are contained within the transcript itself.

The transcriptional termination sequence is a site in the DNA approximately 30 base pairs downstream of the actual termination point.

Transcription terminates when the polymerase reaches the promoter of the adjacent downstream gene.

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.

It is a sequence in chromosomes that marks replication origins.

It is a sequence in primary transcripts that marks cleavage and polyadenylation sites.

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