Questions
(4)(a)Why is it necessary to conduct statistical tests of hypotheses in statistics and econometrics? (b)Briefly discuss...

(4)(a)Why is it necessary to conduct statistical tests of hypotheses in statistics and econometrics?
(b)Briefly discuss the following tests
Z test of hypothesis about the population mean
t test of hypothesis about the population mean
t test of hypothesis about the parameters of a regression model
F test of overall significance of the parameters of a regression model
DW test of 1st order serial correlation
The Glejser and Park tests for Heteroskedasticity.
NOTE: You can look up your notes from class discussions as well as the index of your text book for each of these tests and familiarize yourself with what they are and when and how they are applied.

(5)What role does the error term ( Residual term, Stochastic term) play in econometric models? Why is the error term included and what accounts for its value?

In: Statistics and Probability

(4)(a)Why is it necessary to conduct statistical tests of hypotheses in statistics and econometrics? (b)Briefly discuss...

(4)(a)Why is it necessary to conduct statistical tests of hypotheses in statistics and econometrics?
(b)Briefly discuss the following tests
Z test of hypothesis about the population mean
t test of hypothesis about the population mean
t test of hypothesis about the parameters of a regression model
F test of overall significance of the parameters of a regression model
DW test of 1st order serial correlation
The Glejser and Park tests for Heteroskedasticity.
NOTE: You can look up your notes from class discussions as well as the index of your text book for each of these tests and familiarize yourself with what they are and when and how they are applied.

(5)What role does the error term ( Residual term, Stochastic term) play in econometric models? Why is the error term included and what accounts for its value?

In: Statistics and Probability

A travel agent wanted to know whether the price (in dollars) of Marriot, Hyatt, and Sheraton...

  1. A travel agent wanted to know whether the price (in dollars) of Marriot, Hyatt, and Sheraton Hotels differed significantly. The following data represents the room rate for each hotel in 6 randomly selected cities.

Marriott

Hyatt

Sheraton

Chicago

179

139.40

150

Los Angeles

169

161.50

161

Houston

163

187

189

Boston

189

179.10

169

Denver

179

168

112

Orlando

147

159

147

  1. What test is appropriate in this situation?
  1. Do you think the price of Marriot, Hyatt, and Sheraton Hotels differed significantly based on the interaction plot below? Use 4 Cs analysis to justify your answer.
  1. Determine which pairs differ significantly, if the price differs.

May use MiniTab for statistical analysis

In: Statistics and Probability

You have been hired by a company that is designing a new slide (Chorrera) for an...

You have been hired by a company that is designing a new slide (Chorrera) for an aquatic amusement park. In the conceptual design, a customer is expected to go down the curved end slide and then move horizontally across the bottom. At the end of the slide, the client grasps the end of a 16.0 m long vertical bar that can rotate around its center. After holding on to the bar, the client falls into a pool. When the bar moves (oscillates) to its maximum distance, the customer can drop it and fall into the water. Your task is to determine the height of the slide such that the maximum horizontal distance that the bar moves is 5.0 m, for a 60 kg person. The bar has five times the mass of a 60 kg person. From the physics book, you can find the moment of inertia of the bar under consideration.

In: Physics

1. A rock is thrown downward into a well that is 8.70 m deep. If the...

1. A rock is thrown downward into a well that is 8.70 m deep.

If the splash is heard 1.10 seconds later, what was the initial speed of the rock? Take the speed of sound in the air to be 343 m/s.

2. A bird-watcher is hoping to add the white-throated sparrow to her "life list" of species. Person, only 1.00 m from the bird, hears the sound with an intensity of 2.68×10?5 W/m2 .

How far could she be from the bird and still be able to hear it? Assume no reflections or absorption of the sparrow's sound.

3. At Zion National Park a loud shout produces an echo 2.00 s later from a colorful sandstone cliff.

How far away is the cliff? Take the speed of sound in the air to be 343 m/s .

In: Physics

Determine whether the following transactions involve spot exchange, contracts, vertical integration, conglomerate mergers, horizontal integration, site...

Determine whether the following transactions involve spot exchange, contracts, vertical integration, conglomerate mergers, horizontal integration, site specificity, physical-asset specificity, dedicated assets or human capital.

Bob, the owner of a bakery, buys his competition.
Bob, the owner of a bakery, hired a pastry chef who is famous for her cakes.
Bob, the owner of a bakery, buys a wheat farm so he can mill his own wheat flour.
Bob, the owner of a bakery, has ovens that are used only to bake the breads and buns of the Grand Hotel, his biggest client.
Bob, the owner of a bakery, occasionally hires Steve, a labourer, to clean his windows.

Choose...physical-asset specifictyconglomerate mergersvertical integrationhuman capitaldedicated assetscontractshorizontal integrationspot exchangesite specificity

In: Economics

A group of college students want to have a party. They need to decide if they...

A group of college students want to have a party. They need to decide if they want to have it at the Beach (B) or at the Park (P) or in a Warehouse (W). They were ask to list in order their 1st, 2nd, and 3rd choice of where they want to have the party. Use the following table and answer the following questions. SHOW YOUR WORK to receive full credit.

10 students

8 students

13 students

1 st choice

W

B

P

2 nd choice

B

W

B

3 rd choice

P

P

W

a. How many votes were cast?

b. Use the plurality method to determine the winner.

c. Use the instant runoff method to determine the winner.

d. Use the Borda count method to determine the winner.

In: Math

Jake was stopped in his car at a red light. A pair of teenagers unexpectly ran...

Jake was stopped in his car at a red light. A pair of teenagers unexpectly ran up to the vehicle and smashed the windshield with a baseball bat and stole Jacks one of a kind very valuable baseball card on the front seat of his car. Jake quickly pulled his car over to the side, put his car into park and leaped out to chase the teenagers. Unfortunately he did not catch them. Worse yet upon returning to scene, he found that his car had been stolen. A few minutes later several blocks away the thief rammed Jake's vehicle into Mysty's truck. The teenagers and the thief have never been identified. Mysty has therefore sued Jake. Should Jake be held liable?
answer this question with proper explanation including facts and analysis.

In: Operations Management

this is a personal question but feel free to talk about your self i will edit...

this is a personal question but feel free to talk about your self i will edit some stuff

biology is the course please type the anwers at least one to two pages

  1. One topic we will touch on in this course is heredity. To get you thinking about science and its application in your life, pick a trait or characteristic that you appreciate or are proud of that was passed on by your parents, or a trait or characteristic of yourself that you would want to pass on to the next generation. Share with us that trait or characteristic and why that makes you who you are.

  2. Also, tell us what you hope to get out of this course and/or what questions you want to have answered. Feel free to share a picture of yourself in a favorite spot (e.g., at the park with your dog), and tell us why you like that place.

In: Biology

a) Explain with an illustration why only external pressures are considered when determining the primary (i.e....

a) Explain with an illustration why only external pressures are considered when determining the primary (i.e. global) structural action due to wind loads.

b) What range of Cpi would you consider for a residential apartment building?

c) Which exposure classification would apply for the following situations:

a. Wind coming from Lake Ontario for a building located on the waterfront in Toronto.

b. A tourism center located in a national park in Northern Ontario.

c. A structure located on the edge of an urban area with a few homes between it and farmland.

d. A storage unit for a construction company located in a rural community without many trees.

d) What conditions must be satisfied for the equivalent lateral force procedure to apply?

Answer all of this, if not please answer some of it. Thanks

In: Civil Engineering