Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

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Answer 1

Question

Chapter 9, Problem 168SE

a.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

b.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 micro amps for a sample of size 51.

c.

To determine

Compare the answers and comment on how sample size affects the conclusions in parts (a) and (b).

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T1.4: Let ẞ(G) be the minimum size of a vertex cover, a(G) be the maximum size of an independent set and m(G) = |E(G)|. (i) Prove that if G is triangle free (no induced K3) then m(G) ≤ a(G)B(G). Hints - The neighborhood of a vertex in a triangle free graph must be independent; all edges have at least one end in a vertex cover. (ii) Show that all graphs of order n ≥ 3 and size m> [n2/4] contain a triangle. Hints - you may need to use either elementary calculus or the arithmetic-geometric mean inequality.

We consider the one-period model studied in class as an example. Namely, we assumethat the current stock price is S0 = 10. At time T, the stock has either moved up toSt = 12 (with probability p = 0.6) or down towards St = 8 (with probability 1−p = 0.4).We consider a call option on this stock with maturity T and strike price K = 10. Theinterest rate on the money market is zero.As in class, we assume that you, as a customer, are willing to buy the call option on100 shares of stock for $120. The investor, who sold you the option, can adopt one of thefollowing strategies: Strategy 1: (seen in class) Buy 50 shares of stock and borrow $380. Strategy 2: Buy 55 shares of stock and borrow $430. Strategy 3: Buy 60 shares of stock and borrow $480. Strategy 4: Buy 40 shares of stock and borrow $280.(a) For each of strategies 2-4, describe the value of the investor’s portfolio at time 0,and at time T for each possible movement of the stock.(b) For each of strategies 2-4, does the investor have…

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Answer 2

Question

Chapter 9, Problem 168SE

a.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

b.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 micro amps for a sample of size 51.

c.

To determine

Compare the answers and comment on how sample size affects the conclusions in parts (a) and (b).

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Answer 3

Question

Chapter 9, Problem 168SE

a.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

b.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 micro amps for a sample of size 51.

c.

To determine

Compare the answers and comment on how sample size affects the conclusions in parts (a) and (b).

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 9, Problem 168SE

a.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

b.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 micro amps for a sample of size 51.

c.

To determine

Compare the answers and comment on how sample size affects the conclusions in parts (a) and (b).

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 9, Problem 168SE

a.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

b.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 micro amps for a sample of size 51.

c.

To determine

Compare the answers and comment on how sample size affects the conclusions in parts (a) and (b).

Answer 6

Chapter 9, Problem 168SE

a.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

Answer 7

Chapter 9, Problem 168SE

a.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

Answer 8

b.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 micro amps for a sample of size 51.

Answer 9

b.

To determine

Check whether the data support the claim that the standard deviation of current is less than 20 micro amps for a sample of size 51.

Answer 10

c.

To determine

Compare the answers and comment on how sample size affects the conclusions in parts (a) and (b).

Answer 11

c.

To determine

Compare the answers and comment on how sample size affects the conclusions in parts (a) and (b).

Answer 12

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Answer 13

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Answer 14

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Answer 15

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Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

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Check whether the data support the claim that the standard deviation of current is less than 20 microamps for a sample of size 10.

Check whether the data support the claim that the standard deviation of current is less than 20 micro amps for a sample of size 51.

Compare the answers and comment on how sample size affects the conclusions in parts (a) and (b).

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Chapter 9 Solutions