Researchers gave 40 index cards to a waitress at an Italian restaurant in New Jersey. Before delivering the bill to each customer, the waitress randomly selected a card and wrote on the bill the same message that was printed on the index card. Twenty of the cards had the message "The weather is supposed to be really good tomorrow. I hope you enjoy the day!" Another 20 cards contained the message "The weather is supposed to be not so good tomorrow. I hope you enjoy the day anyway!"

After the customers left, the waitress recorded the amount of the tip, percent of bill, before taxes. Given are the tips for those receiving the good‑weather message.

Given are the tips for the 20 customers who received the bad‑weather message.

Stemplots for both data sets are shown.

Neither stemplot suggests a strong skew or the presence of strong outliers. Because of this, t procedures are reasonable here.

Is there good evidence that the two different messages produce different percent tips?

Let μ1 be the mean tip percent when the forecast is good, and let μ2 be the mean tip percent when the forecast is bad. Select the correct hypotheses statements that we want to test.

H0:μ1=μ2 versus Ha:μ1>μ2

H0:μ1=μ2 versus Ha:μ1≠μ2

H0:μ1=μ2 versus Ha:μ1<μ2

H0:μ1≠μ2 versus Ha:μ1<μ2

What degrees of freedom (df) would you use in the conservative two‑sample t procedures to compare the percentage of tips when the forecast is good and bad? (Enter your answer as a whole number.)

df=

What is the two‑sample t test statistic (rounded to three decimal places)?

t=

Test whether there is good evidence that the two different messages produce different percent tips at α=0.1 . The null hypothesis of no difference in tips due to the weather "forecast" is

not rejected.

rejected.

Python programming Summary

Store the times into arrays called Chevy[ ] and Ford[ ]. Then list the winner of each pair, giving the number of seconds the winner won by. At the end declare which team won based on which team had the most wins.

Lab Steps

There are eight cars in each team called Chevy and Ford. One car from each team races its opponent on the drag strip. Read in the racing times for the eight Chevy cars and then read in the times for the eight Ford cars.

Sample Match:

Specifications:

• Accept the racing times for each of the Chevy cars into the array Chevy[ ].
• Accept the racing times for each of the Ford cars into the array Ford[ ].
• Then declare the wining car for each race, giving the winning time in seconds.
• If the times are identical, then declare the race was a tie.
• Finally, declare which team won the match, assuming a tie is possible.

“Hello, I am Lillian Tudor, and I was married to my high school sweetheart, Earl, for 53 wonderful years. He died 2 years ago and I miss him to this day. Earl and I had three children, two of whom passed before Earl. Our oldest daughter, Leigh, is still helping me around the house and is a blessing to me in my old age. Let me tell you something. Getting old ain’t for sissies! I’m 84 years old as of last month. Leigh had the family meet at a buffet restaurant in town for a surprise party! It was nice to see the grandkids, because they don’t stop by often enough with their busy lives. Lynn, the oldest, has a great husband and two kids with more energy than what seems humanly possible. Leigh complains that they are too loud, but I think everyone else talks too softly these days! In fact, when Leigh comes over to take me to the doctor, she’s always telling me my television is too loud.  

“I have a lot of doctors who I see. There’s one for my heart and blood pressure who says my cholesterol is too high and wants me to start a new medicine. Another one is for the diabetes, which makes me use those stupid syringes to take insulin. And the last one is for trying to help me with my stiff knees and sore joints. Like I said, getting old ain’tfor a sissy! Did I mention the adult briefs I wear to help with my bladder leakage? It’s those dang water pills that I take to keep my feet from swelling so badly. All in all, it’s not a bad life.”

In addition to what Lillian has told you, here is a list of her current medications.

Captopril 25 mg, three times a day   

Alprazolam (Xanax) 0.5 mg, by mouth as needed for anxiety  

Insulin lispro (Humalog) 7 units subcutaneous TID, 15 minutes before meals   

Tramadol for arthritis pain  

Furosemide 40 mg, twice per day   

Ciprofloxacin 250 mg every 12 hours  

Pilocarpine eye drops, two drops each eye, four times a day   

Lasix 60 mg, once per day in the morning  

Select one medication and answer all five of the following questions.

1. If this was a medication order, do you have enough information to safely administer the medication? Please explain your answer and provide the missing information, if any.

2. What is the medication’s classification? Does it have any special considerations about which the nurse should be aware?

3. Why is Lillian taking this medication? If you are unsure based on the information you’ve been given thus far, list common reasons for this medication to be given.

4. Does this medication present any possible adverse interactions with the other medications Lillian is taking?

5. What are the implications of Lillian taking garlic supplements with her current Drug Interactions?“Hello, I am Lillian Tudor, and I was married to my high school sweetheart, Earl, for 53 wonderful years. He died 2 years ago and I miss him to this day. Earl and I had three children, two of whom passed before Earl. Our oldest daughter, Leigh, is still helping me around the house and is a blessing to me in my old age. Let me tell you something. Getting old ain’t for sissies! I’m 84 years old as of last month. Leigh had the family meet at a buffet restaurant in town for a surprise party! It was nice to see the grandkids, because they don’t stop by often enough with their busy lives. Lynn, the oldest, has a great husband and two kids with more energy than what seems humanly possible. Leigh complains that they are too loud, but I think everyone else talks too softly these days! In fact, when Leigh comes over to take me to the doctor, she’s always telling me my television is too loud.  

“I have a lot of doctors who I see. There’s one for my heart and blood pressure who says my cholesterol is too high and wants me to start a new medicine. Another one is for the diabetes, which makes me use those stupid syringes to take insulin. And the last one is for trying to help me with my stiff knees and sore joints. Like I said, getting old ain’tfor a sissy! Did I mention the adult briefs I wear to help with my bladder leakage? It’s those dang water pills that I take to keep my feet from swelling so badly. All in all, it’s not a bad life.”

In addition to what Lillian has told you, here is a list of her current medications.

Captopril 25 mg, three times a day   

Alprazolam (Xanax) 0.5 mg, by mouth as needed for anxiety  

Insulin lispro (Humalog) 7 units subcutaneous TID, 15 minutes before meals   

Tramadol for arthritis pain  

Furosemide 40 mg, twice per day   

Ciprofloxacin 250 mg every 12 hours  

Pilocarpine eye drops, two drops each eye, four times a day   

Lasix 60 mg, once per day in the morning  

Select one medication and answer all five of the following questions.

1. If this was a medication order, do you have enough information to safely administer the medication? Please explain your answer and provide the missing information, if any.

2. What is the medication’s classification? Does it have any special considerations about which the nurse should be aware?

3. Why is Lillian taking this medication? If you are unsure based on the information you’ve been given thus far, list common reasons for this medication to be given.

4. Does this medication present any possible adverse interactions with the other medications Lillian is taking?

5. What are the implications of Lillian taking garlic supplements with her current Drug Interactions?“Hello, I am Lillian Tudor, and I was married to my high school sweetheart, Earl, for 53 wonderful years. He died 2 years ago and I miss him to this day. Earl and I had three children, two of whom passed before Earl. Our oldest daughter, Leigh, is still helping me around the house and is a blessing to me in my old age. Let me tell you something. Getting old ain’t for sissies! I’m 84 years old as of last month. Leigh had the family meet at a buffet restaurant in town for a surprise party! It was nice to see the grandkids, because they don’t stop by often enough with their busy lives. Lynn, the oldest, has a great husband and two kids with more energy than what seems humanly possible. Leigh complains that they are too loud, but I think everyone else talks too softly these days! In fact, when Leigh comes over to take me to the doctor, she’s always telling me my television is too loud.  

“I have a lot of doctors who I see. There’s one for my heart and blood pressure who says my cholesterol is too high and wants me to start a new medicine. Another one is for the diabetes, which makes me use those stupid syringes to take insulin. And the last one is for trying to help me with my stiff knees and sore joints. Like I said, getting old ain’tfor a sissy! Did I mention the adult briefs I wear to help with my bladder leakage? It’s those dang water pills that I take to keep my feet from swelling so badly. All in all, it’s not a bad life.”

In addition to what Lillian has told you, here is a list of her current medications.

Captopril 25 mg, three times a day   

Alprazolam (Xanax) 0.5 mg, by mouth as needed for anxiety  

Insulin lispro (Humalog) 7 units subcutaneous TID, 15 minutes before meals   

Tramadol for arthritis pain  

Furosemide 40 mg, twice per day   

Ciprofloxacin 250 mg every 12 hours  

Pilocarpine eye drops, two drops each eye, four times a day   

Lasix 60 mg, once per day in the morning  

Select one medication and answer all five of the following questions.

1. If this was a medication order, do you have enough information to safely administer the medication? Please explain your answer and provide the missing information, if any.

2. What is the medication’s classification? Does it have any special considerations about which the nurse should be aware?

3. Why is Lillian taking this medication? If you are unsure based on the information you’ve been given thus far, list common reasons for this medication to be given.

4. Does this medication present any possible adverse interactions with the other medications Lillian is taking?

5. What are the implications of Lillian taking garlic supplements with her current Drug Interactions?

9. Younger Corporation reports that at an activity level of 8,700 units, its total variable cost is $653,109 and its total fixed cost is $658,416.

Required:

For the activity level of 8,800 units, compute: (a) the total variable cost; (b) the total fixed cost; (c) the total cost; (d) the average variable cost per unit; (e) the average fixed cost per unit; and (f) the average total cost per unit. Assume that this activity level is within the relevant range.

10. Match the following terms to the appropriate statement by placing the letter to the left of each statement.

a.Committed fixed cost b. Fixed Cost c. Variable Cost d. Total Cost e. Discretionary Fixed Cost f. High-low method g. Mixed Cost h. Relevant Range i. Scattergraph j. Step cost

1. Cost that does not change in total as long as production is in the relevant range.

2. Fixed costs that cannot be changed over the short run.

3. Cost that changes in total as production changes but remains unchanged per unit.

4. The sum of fixed costs and variable costs

5. The normal level of operating activity.

6. Fixed costs that can be changed over the short run.

7. A cost that has both a fixed and variable component.

8. A cost that is fixed over only a small range of activity.

9. A graph that shows total costs in relation to volume, or activity level.

10. A method of estimating the fixed and variable cost components of a mixed cost that requires using only two data points, the lowest point of activity and the highest point of activity.

11. Indicate which of the following costs are classified as mixed or step costs.

12. Vest Construction Company’s cost of renting a crane for the last four months is as follows:

Using the high-low method, what is the company’s estimated variable and fixed component of operating expenses? What is the total cost equation? What would be the estimated total cost if a crane is rented for 60 hours per month?

If the reported average amount of CO2 (ppm) levels, in parts per million, in 50 kitchen gas
cooking appliances was 600.1 ppm and a sample standard deviation of 95.2 ppm.
a. Find a 95% confidence interval for the mean amount of CO2 in all kitchen gas cooking appliances.

b. If the investigators thought the standard deviation was 130 ppm, what sample size would be neces-
sary to obtain an interval with of 50 ppm for a confidence level of 95/

            Suppose a hypothetical oil market consists of two oil producers Jack & Jill. Suppose the marginal cost of pumping oil is equal to zero, while the demand for oil is described by the following schedule.

Quantity                               Price                         Total Revenue (and total profit)

0 gallons                                $120                                                               $   0

10                                            110                                                                  1100

20                                            100                                                                 2000

30                                            90                                                                    2700

40                                            80                                                                    3200

50                                            70                                                                    3500

60                                            60                                                                    3600

70                                            50                                                                    3500

80                                            40                                                                    3200

90                                            30                                                                    2700

100                                         20                                                                    2000

110                                         10                                                                    1100

120                                         0                                                                            0

a.         What would be the equilibrium outcome (price and quantity) if the markets were either competitive or monopolistic?

b.         If both Jack & Jill form a collusion, what quantity and price would they try to set?

c.         If both the duopolists don’t act together but instead make production decisions independently, what quantity would they produce and price they would set?

d.         Explain and give reasons for your answers.

Consider an at-the-money European call option with one year left to maturity written on a non-dividend paying stock. Let today’s stock price be 80 kr and strike price be 40 krand the stock volatility be 30%. Furthermore let the risk free interest rate be 6%. Construct a one-year, two-step Binomial tree for the stock and calculate today’s price of the European call.

A study of conformity using the Asch paradigm involved two conditions: one where
one confederate supported the true judgement and another where no confederate
gave the correct response.

Is there a significant difference between the "support" and "no support" conditions in the
frequency with which individuals are likely to conform? [Chi-Square = 19.87, with 1 df:
? < 0.05].

WD Imagine Inc. has three locations in Canada: Vancouver, Toronto and Montreal. The company develops and maintains web-designs for medium size companies. Management of Vancouver office is concerned about the cost of handling web-related matters.

WD Imagine Vancouver Office has provided the following data for the year 2019:

Junior web-designers salaries          $ 280,000

Senior web-designers salaries            $ 320,000

Office manager salary                        $ 120,000

WD accountant believes that apart from salaries all other expenses are fixed costs and cannot be meaningfully assigned to individual job.

The employees of WD-Vancouver Office have prepared the following table that shows how their time was distributed last year across the two activities

Jobs at Vancouver office during 2019 were as follows:

The costs relating to these activities for Toronto office are listed below:

Required:

a. Compute Vancouver office activity rates for developing complex wed-design AND Routine web-design jobs.

b. Compare the Vancouver results to that of Toronto Office. Suggest two possible reason for the discrepancies noted in each activity rate: complex wed-design AND Routine web-design jobs. (ie 4 in total).

WD Imagine Inc. has three locations in Canada: Vancouver, Toronto and Montreal. The company develops and maintains web-designs for medium size companies. Management of Vancouver office is concerned about the cost of handling web-related matters.

WD Imagine Vancouver Office has provided the following data for the year 2019:

Junior web-designers salaries          $ 280,000

Senior web-designers salaries            $ 320,000

Office manager salary                        $ 120,000

WD accountant believes that apart from salaries all other expenses are fixed costs and cannot be meaningfully assigned to individual job.

The employees of WD-Vancouver Office have prepared the following table that shows how their time was distributed last year across the two activities

Jobs at Vancouver office during 2019 were as follows:

The costs relating to these activities for Toronto office are listed below:

Required:

a. Compute Vancouver office activity rates for developing complex wed-design AND Routine web-design jobs.

b. Compare the Vancouver results to that of Toronto Office. Suggest two possible reason for the discrepancies noted in each activity rate: complex wed-design AND Routine web-design jobs. (ie 4 in total).