Which of the following statements are CORRECT? (Select all that apply.) 

Shamrock Toy Co. produces three products: A, B, and C. Production of each product is limited by the number of machine hours available, and sales are limited by market demand. The following unit-level information applies to each product:   A B C Unit Selling Price $40.00 $60.00 $300.00 Unit Variable Cost $10.00 $30.00 $160.00 Machine Hours Required per unit 0.50 1.00 2.00 Currently, there is unmet market demand for 1,000 units of A, 600 units of B, and 400 units of C. What is the maximum amount Shamrock Manufacturing Co. can increase total contribution margin by if 1,500 additional machine hours become available? (Do not round intermediate calculations. Round your final answer to the nearest whole dollar.)

BONUS QUESTION #2 Which of the following is not in the top 5 of the most frequently fractured bones?  

BONUS QUESTION #1 Approximately ______ of the body’s bones can be found in the hands and feet, including the wrists and ankles.

   What is the name of the muscle labeled “4”?    What is the name of the muscle labeled “7”?

Bird skeleton.png   This is a bird.  Extra Credit: What bone is labeled “D”? 

(10 points) You are a manager in an IT company. You ask your security specialists to design a new authenticated encryption scheme that uses some block cipher (e.g. AES) as a building block and has some properties useful for your application. To make sure the schemes are secure you also ask the specialists to prove security of their schemes based on the PRF security of the block cipher and to present the resulting concrete security statements.In a week you get 4 scheme designs  that have the desired properties and similar efficiency (take equal time to encrypt and decrypt messages of equal length). The schemes are accompanied by the following security statements. For every efficient adversary  attacking INT-CTXT security of the encryption scheme, there exists an adversary  attacking the PRF security of the block cipher  with comparable resources, and for every efficient adversary ‘ attacking IND-CPA security of the encryption scheme by making  queries to its LR-encryption oracle, of total length

An A/B test tells us if: 

Assuming a significance level of 0.05, interpret this output from an A/B test. Be as specific as possible. What can we conclude?

A high-end handbag designer is testing their latest handbag designs to improve sales. Version A features a slightly larger handbag, while Version B highlights a smaller-style handbag. The designer selects two groups, V1 and V2, to run an A/B test. Group V1 rates the larger bag, and group V2 rates the smaller style. You can consider the rating to be on a scale of 1-10. Assuming a significance level of 0.01. Define a clear null hypothesis and alternative hypothesis for this A/B test. Identify the independent variable and the dependent variable. Would the extraneous variables be addressed if V1 and V2 were selected from outside of the U.S.? Justify your answer, Can you use a two-sample t-test assuming equal variances? Justify your answer. Under which conditions would you reject or fail to reject the null hypothesis?