The following data were collected as part of a study of coffee consumption among graduate students. The following reflect cups per day consumed:

3          4          6          8          2          1          0          2

1. Compute the sample mean.

2. Compute the sample standard deviation.

3. Compute the median.

4. Compute the first and third quartiles.

5. Which measure, the mean or median, is a better measure of a typical value? Justify.

6. Which measure, the standard deviation or the interquartile range, is a better measure of dispersion? Justify.

2. Consider the following hourly demand and cost schedule for a monopoly firm; (Tπ, is Total Profit).

  Q    P             TR          MR          TC          TVC         MC           ATC          AVC         Tπ

  0     19                                          $4.00

  1      18                                                                            4

  2      17                                                                            2

  3      16                                                                            1

  4      15                                                                           2

  5      14                                                                           3

  6      13                                                                            4

  7      12                                                                           5

  8       11                                                                           6

  9        10                                                                          7                                                                                                                      ___________________________           

During the 2016 Masters Golf tournament Jordan Spieth failed to repeat as champion. His scores relative to par in each round, on each hole are reported in the table below.

Determine the control limits of appropriate control charts for Jordan Spieth performance. Report your findings. (Round your mean values to 4 decimal places and control limits to 3 decimal places.)

Six halides: 1-chlorobutane, 2-chlorobutane, Allyl chloride, 2-chloro-2-methylpropane, 1-chloro-2-methylpropane, 2-bromobutane.

SN2: w/ sodium iodide in acetone
SN1: w/ silver nitrate in ethanol

Explain the order of reactivity under SN2 and SN1 conditions by considering alkyl halide structure, nature of the learoup, temperature, solvent, etc.
Please be descriptive and answer them correctly.

What is the average monthly return and standard deviation of returns for

(i) S&P 500:

(ii) GE:

In a study of jury behavior, two samples of participants were provided details about a trial in which the defendant was obviously guilty. Although group 2 received the same details as group 1, the second group was also told that same evidence had been withheld from the jury by the judge. Later the participants were asked to recommend a jail sentence. The length of term suggested by each participant is presented here. Is there a significant difference between the two groups in their response. Test at α = .001

Group 1                            Group 2

                        4                                  3

                        4                                  7

3                                  8

2                                  5

5                                  4

1                                  7

1                                  7

4                                  8

For each of the subspaces ? and ? of ?4 (ℝ) defined below, find bases for ? + ? and ? ∩ ?, and verify that dim[?] + dim[? ] = dim[? + ? ] + dim[? ∩ ? ]

(a) ? = {(1, 3, 0, 1), (1, −2, 2, −2)}, ? = {(1, 0, −1, 0), (2, 1, 2, −1)}

(b) ? = {(1, 0, 1, 2), (1, 1, 0, 1)}, ? = {(0, 2, 1, 1), (2, 0, −1, 0)}

Name the possible products of this reaction in the presence of ether and AlCl3: methylbenzene + 2-chlorobutane.
1. 1-ethyl-2-methylbenzene

2. 1-ethyl-3-methylbenzene

3. 1-ethyl-4-methylbenzene

1.         What is the proportion of males who bullied others? What is the proportion of females who bullied others? Which gender (male or female) possessed a deeper involvement in bullying others?

2.         Test the hypothesis (at the .05 level of significance) that individuals who were bullied are more likely to bully others. Test the hypothesis (at the .05 level of significance) that individuals who were bullied committed more bullying than those who were not bullied.

3.         Draw a scatter plot of “number of friends who bully” [x axis] and “number of times respondent bullied others” [y axis]. Based only on the scatter plot, do you believe the correlation between these two variables is positive or negative. Why?

4.         If you were to draw one individual from this sample of 10 individuals, what would do characteristics do you believe would be the most likely to be drawn (1 = Bully Victim and Bully Offender; 2 = Bully Victim but not Bully Offender; 3 = Bully Offender but not Bully Victim; or 4 = Non Bully Victim and Non Bully Offender)? Why?

5.         If the researcher used all of these variables to predict whether a respondent was a Bully, which variable (# of friends who bully, respondent was a bully victim, or gender) do you believe would be the strongest predictor? Why?

Calculate the number of moles in 82.05 grams of Ca(NO3)2.
1 mole
2 moles
82.05 moles
0.50 moles

Question 3
Determine the number of grams in 0.5390 moles of calcium nitrate.
88.45 g
164.1 g
1 g
0.5390 g

Question 4
A sample of pure calcium nitrate has the same number of calcium cations as nitrate anions.
True
False

Question 5
A sample of calcium nitrate has twice as many nitrate anions as calcium cations.
True
False

Question 6
A sample of calcium nitrate that weighs 328.2 grams has
164.1 g of calcium
40.08 g Ca
80.16 g Ca
1 mole of calcium

Question 7
Place the following in order from the heaviest to the lightest.
- 1. 2. 3. 4. the mass of 1.2 moles of aluminum hydroxide
- 1. 2. 3. 4. the mass of one mole of calcium nitrate
- 1. 2. 3. 4. the mass of 1 mole of H2SO4
- 1. 2. 3. 4. the mass of 0.610 moles of calcium nitrate

Question 8
Is the formula weight of ammonium phosphate 149.33 g/mole? Pull all atomic weights from the periodic table with two decimal places to figure it out.
True
False