a bakery has bought 140 lbs of muffin dough. They want to make muffins and waffles in half dozen packs out of it. A pack of muffins requires one pound of dough & a pack of waffles requires half a pound of dough. It takes bakers 2 minutes to make a half dozen of muffins & 5 minutes to make a half dozen of waffles. The bakery make $1.50 profit on each pack of muffins and $2.00 profit on each pack of waffles. What is the max possible profit the bakery can make from the muffin dough it purchased if the bakers need to complete the baking in 10 hours or less (600 minutes)?
a)$210 b)$240 c)$310 d) $320 e)none
In: Math
John is 37 years old and would like to establish a retirement plan. Develop a spreadsheet model that could be used to assist John with retirement planning. Your model should include the following input parameters:
John’s current age = 37 years,
Johns current total retirement savings = $259,000,
Annual rate of return on retirement savings = 4 percent,
Johns current annual salary = $145,000,
Johns expected annual percentage increase in salary = 2 percent,
Johns percentage of annual salary contributed to retirement = 6 percent,
Johns expected age of retirement = 65,
Johns expected annual expenses after retirement (current dollars) = $90,000,
Rate of return on retirement savings after retirement = 3 percent,
Income tax rate postretirement = 15 percent
Assume that John’s employer contributes 6% John’s salary to his retirement fund. John can make an additional annual contribution to his retirement fund before taxes (tax free) up to a contribution of $16,000. Assume he contributes $6,000 per year. Also, assume an inflation rate of 2%.
Managerial Report Your spreadsheet model should provide the accumulated savings at the onset of retirement as well as the age at which funds will be depleted (given assumptions on the input parameters).
Outline the factors that will have the greatest impact on his retirement.
Show all work in excel.
In: Math
An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic.
Step 1 of 2:
Suppose a sample of 1046 new car buyers is drawn. Of those sampled, 355 preferred foreign over domestic cars. Using the data, estimate the proportion of new car buyers who prefer foreign cars. Enter your answer as a fraction or a decimal number rounded to three decimal places.
Step 2 of 2:
Suppose a sample of 1046 new car buyers is drawn. Of those sampled, 355 preferred foreign over domestic cars. Using the data, construct the 85% confidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars. Round your answers to three decimal places.
In: Math
in a survey of 2290 adults, 717 say they believe in UFO's
construct a 99% confidence interval for the population proportion of adults who believe in UFOS
a 99% confidence level for the population proportion is ( , ) round to three decimals.
interpret your results. Choose correct answer below.
A. with 99% probability the population proportion of adults who do not believe in UFOS is between the endpoints of the given confidence interval.
B. with 99% confidence it can be said that the population proportion of adults who believe in UFOS is between the endpoints of the given confidence interval.
C. the endpoints of the given confidence interval shows that 99% of adults believe in UFOs
D. with 99% confidence , it can be said that the sample proportion of adults who believe in UFOS is between the endpoints of the given confidence interval.
In: Math
a sample of 21 minivan electrical warranty repairs for "loose, not attached" wires (one of several electrical failure categories the dealership mechanic can select) showed a mean repair cost of $45.66 with a standard deviation of $27.79. (a) construct a 95 percent confidence interval for the true mean repair cost. (b) How could the confidence interval be made narrower?
In: Math
does the "unbiased" aspect of unbiased estimator indicate that it underestimates the population value with same tenency as it overestimates the population value, or not?
In: Math
A large advertising firm specializes in creating television commercials for children’s products. The firm wants to design a study to investigate factors that may affect the lengths of time a commercial is able to hold a child’s attention. A preliminary study determines that two factors that may be important are the age of the child and the type of product being advertised. The firm wants to determine whether there were large differences in the mean length of time that the commercial is able to hold the child’s attention depending on these two factors. If there proves to be a difference, the firm would then attempt to determine new types of commercials depending on the product and targeted age group. Three age groups are used: A1: 5-6 years, A2: 7-8 years, and A3: 9-10 years. The types of products selected are P1: Breakfast cereals and P2: Video games. The data are below:
|
A1 |
A2 |
A3 |
|
|
P1 |
19 |
19 |
37 |
|
36 |
35 |
6 |
|
|
40 |
22 |
28 |
|
|
30 |
28 |
4 |
|
|
4 |
1 |
32 |
|
|
10 |
27 |
16 |
|
|
30 |
27 |
8 |
|
|
5 |
16 |
41 |
|
|
24 |
3 |
29 |
|
|
21 |
18 |
18 |
|
|
P2 |
39 |
30 |
51 |
|
18 |
47 |
52 |
|
|
32 |
6 |
43 |
|
|
22 |
27 |
48 |
|
|
16 |
44 |
39 |
|
|
2 |
26 |
33 |
|
|
36 |
33 |
56 |
|
|
43 |
48 |
43 |
|
|
7 |
23 |
40 |
|
|
16 |
21 |
51a. |
a. Create a two-way ANOVA table in Excel.
b. Summarize your findings.
In: Math
Based on interviews with 94 SARS patients, researchers found that the mean incubation period was 4.6 days, with a standard deviation of 15.4 days. Based on this information, construct a 95% confidence interval for the mean incubation period of the SARS virus. Interpret the interval.
In: Math
This data talks about a solution of a chemical after sitting for a certain amount of time and provides the time it was left sitting.
| Concentration of a chemical solution (y) | Time after solution was made (x) |
| 0.07 | 9 |
| 0.09 | 9 |
| 0.08 | 9 |
| 0.16 | 7 |
| 0.17 | 7 |
| 0.21 | 7 |
| 0.49 | 5 |
| 0.58 | 5 |
| 0.53 | 5 |
| 1.22 | 3 |
| 1.15 | 3 |
| 1.07 | 3 |
| 2.84 | 1 |
| 2.57 | 1 |
| 3.1 | 1 |
In: Math
Jody is interested in the population mean of pets per household in her neighborhood. She hypothesized that the average amount of pets per household will be less than 3.
To test the hypothesis, she used the following data.
0 1 3 2 1 3
1 0 4 1 0 5
1 2 0 1 2 1
Jody's hypotheses are
H0 : µ≥3
HA : µ<3
Please calculate 1) null and alternative hypothesis 2) alpha value 3) p-value 4) conclusion
In: Math
For each question in this assignment, you should upload your output and your explanations to Canvas. There are 3 questions in this assignment.
The following data are GPAs for a sample of participants (N = 12) at a large university.
2.50 3.33 4.00 2.00 2.75 3.00
3.40 2.75 3.60 1.70 2.80 2.90
The following are the ages of students in a section of Introductory Psychology.
21 18 21 21 20 24 21 18 45 22
24 19 22 25 22 22 25 23 25 21
The following data are reported romantic relationship statuses for a sample of participants (N = 15).
Single Single Married Engaged Single
Divorced Engaged Married Single Engaged
Married Divorced Married Single Engaged
In: Math
Q: Calculate the mean, standard deviation, and 95% confidence limits for each set.
|
A |
B |
C |
D |
E |
F |
|
3.5 |
70.24 |
.812 |
2.7 |
70.65 |
.514 |
|
3.1 |
70.22 |
.792 |
3.0 |
70.63 |
.503 |
|
3.1 |
70.10 |
.794 |
2.6 |
70.64 |
.486 |
|
3.3 |
.900 |
2.8 |
70.21 |
.497 |
|
|
2.5 |
3.2 |
.472 |
Q2: A type of steel contains 1.12% nickel and the standard deviation is 0.03%. The following data are collected (in percent)
a) 1.10 b) 1.08 c) 1.09 d) 1.12 e) 1.09
Is there an indication of bias in the method at the 95% level?
In: Math
Why are measures of relative standing (e.g.. percentiles,
percentile ranks, and standard scores) important?
In: Math
The following data were drawn from a normal population. Find a 98.4% confidence interval for the mean.
7 21 20 8 14 12 18 14 9 23
In: Math
Many years ago, Detroit had a six-month newspaper strike that closed down all its newspapers. During the strike, Detroit’s suicide rate fell very sharply (that is, there were far fewer suicides), but returned to its usual rate when the papers resumed publishing. Do the following: (a) Make up a theoretical model that would account for this observation and (b) generate a total of two interesting hypotheses from the model that could potentially be tested.
In: Math