Fats are considered the most energy-dense of the three energy-yielding nutrients because each gram od fat provides how many calories?

Question 17 options:

To help combat osteoporosis, women should namely make sure they get enough:

Question 21 options:

If a food manufacturer reports on a food package that the item is Fat Free, it is making which type of claim?

Question 27 options:

To study the effect of temperature on yield in a chemical process, five different batches were

produced at each of three temperature levels. The results shown below.

Construct an analysis of variance table. Use α=0.05 level of significance to test whether the temperature level has an effect on the mean yield of the process. You need to show ALL the steps by which you arrived at your ANOVA table. Otherwise, only partial mark will be given.

Consider the following information on three stocks:

A portfolio is invested 45 percent each in Stock A and Stock B and 10 percent in Stock C. What is the expected risk premium on the portfolio if the expected T-bill rate is 4.1 percent?

Although bats are not known for their eyesight, they are able to locate prey (mainly insects) by emitting high-pitched sounds and listening for echoes. A paper gave the following distances (in centimeters) at which a bat first detected a nearby insect. 23 40 27 56 52 34 42 61 68 45 83 (a) Compute the sample mean distance at which the bat first detects an insect. (Round your answer to three decimal places.) cm (b) Compute the sample variance and standard deviation for this data set. (Round your answers to two decimal places.) Variance?

Standard deviation?

The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. An analysis of 27 randomly chosen employees reveals the number of days worked data .

a) Use JMP to fit a one-way ANOVA to the data. Using alpha= 0.05 draw a conclusion for the ANOVA. Make sure you state your conclusion in the context of the problem.

b) Use tukey’s test with alpha= 0.05 to determine which departments’ workers have significantly differently number of days worked.

c) Assume that Department is a random factor, i.e., the three departments used in the analysis represent a random sample of all possible departments. Estimate the components of variance in number of days worked.

d) Determine with alpha = 0.05 if the variance in days worked is different by Department.

Employee    Department Days Worked

1 Pricing 256

2 Payables    220

3 Budgets 260

4 Pricing 233

5    Budgets    258

6    Payables 228

7 Budgets    265

8 Pricing    245

9 Pricing 244

10    Budgets 263

11    Budgets    258

12 Budgets    245

13    Payables 205

14 Payables    240

15 Pricing 242

16 Payables 239

17    Budgets    268

18    Payables    270

19 Pricing 258

20 Budgets    265

21 Pricing    233

22    Pricing    240

23 Budgets    278

24 Payables    255

25    Pricing 249

26    Payables    266

27    Payables 217

Divide the data into three groups according to age: under 25, 26 to 49, and over 50.

Use ANOVA to test the claim that all three of these groups have the same mean balance on their Visa card.

Be sure to write down the mean and standard deviation for each group!

Age <25                                26-49                                      over 50

n =                                          n =                                          n =

x =                                           x =                                         x =

s =                                          s =                                          s =

The data collected below comes from people that live in Salinas. Listed below are the genders, ages and current balance on one specific type of Visa card.

To test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, the Jacobs Chemical Company obtained the following data on the time (in minutes) needed to mix the material.

a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use alpha= .05 .

Compute the values below (to 2 decimals, if necessary).

Calculate the value of the test statistic (to 2 decimals).

b. At the alpha=.05 level of significance, use Fisher's LSD procedure to test for the equality of the means for manufacturers  and .

Calculate Fisher's LSD Value (to 2 decimals).

An engineer has designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure of 4.8 pounds/square inch. The valve was tested on 27 engines and the mean pressure was 4.3 pounds/square inch with a standard deviation of 0.6. Is there evidence at the 0.01 level that the valve performs below the specifications? Assume the population distribution is approximately normal.

Step 1 of 5:

State the null and alternative hypotheses.

step 2 of 5:

Find the value of the test statistic. Round your answer to three decimal places

Step 3 of 5:

Specify if the test is one-tailed or two-tailed.

Step 4 of 5:

Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places.

Step 5 of 5:

Make the decision to reject or fail to reject the null hypothesis.

Suppose a U.S. investor wishes to invest in a British firm currently selling for £25 per share. The investor has $20,000 to invest, and the current exchange rate is $2/£.

a. How many shares can the investor purchase? (Round your answer to the nearest whole number.)

b. Fill in the table below for dollar-denominated rates of return after one year in each of the nine scenarios (three possible share prices denominated in pounds times three possible exchange rates). (Round your answers to 2 decimal places. Leave no cells blank - be certain to enter "0" wherever required. Negative amounts should be indicated by a minus sign.)