1.Now state legislators want to make predictions about how changes in consumers’ budgets will impact their consumption behavior. If school supplies and salty snacks are both normal goods with school supplies on the x-axis of the graph and salty snacks on the y-axis, explain how a decrease in consumers’ budgets would impact the consumption of school supplies and salty snacks.

c)If the state legislature is considering giving people gift certificates for school supplies, what considerations about the impact of gift certificates on people’s utility should they understand in comparison to an equivalent cash gift?

Many consumers pay careful attention to stated nutritional contents on packaged foods when making purchases. It is therefore important that the information on packages be accurate. A random sample of

n = 12 frozen dinners of a certain type was selected from production during a particular period, and the calorie content of each one was determined. (This determination entails destroying the product, so a census would certainly not be desirable!) Here are the resulting data:

[a] Use R (or Excel) to find the summary statistics of the data.                                                         [1 pt]

Copy and paste your computer printout here (or to a blank MS Word document).

[b] Construct a boxplot for the data and comment on any interesting features.                                [4 pt]

Copy and paste your computer printout here (or to a blank MS Word document).

[c] Construct a normal probability plot (QQplot as well as qqline) and comment on any interesting features.                                                                                                                                            [4 pt]

Copy and paste your computer printout here (or to a blank MS Word document).

[d] Use an appropriate test to ensure the data set satisfies the normality assumption.                      [3 pt]

What is your conclusion regarding the data set?

[e] Is it reasonable to test hypotheses about mean calorie content m by using a t-test? Explain why or why not.                                                                                                                                       

Answer:           Yes                  No                   E Circle one                                                              [1 pt]

Explanation:                                                                                                                                       [3 pt]

[e] The stated calorie content is m = 240. Does the boxplot in [a] suggest the true mean content differs from the stated value? Explain your reasoning.                                                                               [3 pt]

[f] Carry out a formal test of the hypotheses suggested in part [e]                                                   

Write your hypotheses in symbols and in words.                                                                               [8 pt]

Use statistical software (such as R) to get analysis results. State what the results tell you about the data.                                                                                                                                                               [8 pt]

Case Study 12.3: Penn State Sexual Abuse Scandal

1. How would you describe the followership at Penn State? Whom would you identify as the followers? Who are the leaders?

2. Using Kelley's typology, how would you describe the follower styles for Schultz and Curley? What about McQueary?

3. How did followers in this case act in ways that contribute to the power of destructive leaders and their goals? What was the debilitating impact their actions had on the organizations?

4. Based on Lipman-Blumen's psychological factors that contribute to harmful leadership, explain why those who could have repotted Sandushy's behaviors chose not to.

5. Based on the outcome, where did Paterno's intentions go wrong? In what ways could followers have changed the moral climate at Penn State?

6. In the end, who carries the burden of responsibility regarding the failure of Paterno's program---the leaders or the followers? Defend your answer.

Answer the following questions about cache coherency protocols in a dual-processor system.

a) If each processor has a separate cache, what is the main advantage of the 4-state MESI snoopy cache coherency protocol compared to a snoopy cache coherency protocol that uses only 3 states M, S and I (modified, shared and invalid)?

b) Suppose that processor P1 (in a dual-processor system) writes to a memory block. A copy of this same memory block is already in a modified line within the local cache of processor P2. What action should be taken for the modified line within P2’s cache? Explain your answer.

c) Assume that the 3-state MSI cache coherency protocol is used with a single 2-way set associative cache containing a total of 1048576 lines each of which is 512 bytes in size. What is the minimum total number of MSI state bits needed for the entire cache?

6. There are 40 books on a bookshelf. Exactly 10 of them have a red cover. The remaining books have a white cover. You intend to choose a random sample of nine books, but you haven't decided whether to choose with replacement or without replacement?

a) If you choose books with our placement, would this procedure lead to independent trials or dependent trials?

b)if you choose books with replacement, would this procedure be consistent with a binomial experiment or not?

c) what is the size of the population? show your work

d) what is the size of the sample? show your work

e) if you ultimately conduct a binomial experiment, find the probability that the 5th book you select, happens to have a red cover? please show your work

f) if you ultimately conduct a binomial experiment, find the probability that you choose two or more red-covered books? please show your work

Finally, for a binomial experiment, please determine: show your work

1. average number of red books, per sample of nine books?
2. the variance of the number of red books, per sample of nine books?

According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. You randomly select six peanut M&M’s from an extra-large bag of the candies. (Round all probabilities below to four decimal places; i.e. your answer should look like 0.1234, not 0.1234444 or 12.34%.)

Compute the probability that exactly two of the six M&M’s are red

Compute the probability that two or three of the six M&M’s are red.

Compute the probability that at most two of the six M&M’s are red.

Compute the probability that at least two of the six M&M’s are red

If you repeatedly select random samples of six peanut M&M’s, on average how many do you expect to be red? (Round your answer to two decimal places.)

With what standard deviation? (Round your answer to two decimal places.)

Circular bars subjected to torsion experience Pure Shear over the cross section. Then, why a classroom chalk subjected torsion experience brittle failure by tension cracking at 45° to the circular cross section? Do some research and explain how shafts made of ductile materials fail when subjected to torsion. Compare and contrast both the brittle failure in chalk and ductile failure in shaft. Explain your answer using the plotted graphs.

The data below are from an independent-measures experiment comparing three different treatment conditions on number of panic attacks. (10 POINTS)

1) State the null hypothesis

2) calculate necessary statistics using an alpha of .05

3) make a decision about your null hypothesis and explain what that decision means

4) Make a conclusion about your IV and DV that includes an APA format summary of your statistical analysis.

5) Indicate what you would do next

What are the functions of sockets in networked applications? Explain your answer with a case scenario where you are receiving 10 packets from a node. How will the socket perform its role? [5 Marks]

2. youtub is an example of stored multimedia type application, discuss the challenges and solutions of youtub while playing multimedia (audio/video) based stored content. Justify your answer with an example (playing a stream and taking screenshots to explain). [5 Marks]

Anwer in detail