Questions
Answer the following questions thoroughly. Use correct grammar and punctuation. 1) A student observes the following...

Answer the following questions thoroughly. Use correct grammar and punctuation.

1) A student observes the following spinner and claims that the color red has the highest probability of appearing, since there are two red areas on the spinner. What is your reply? Your answers should include facts, rules, any definitions necessary to explain why the student is correct or incorrect.

2) In class, an experiment of flipping a coin is performed.

Pretend that you are introducing the concept of probability and introducing the terms 1) experiment, 2) outcomes, 3)sample space, 4) theoretical probability, and 5) empirical probability. Explain these terms, as if you were speaking to a 5th grade class, as if they knew nothing about probability. You will need to tell the class what each term , 1-5, is represented by in this particular example. Use correct grammar and punctuation.

In: Math

A product developer is investigating the tensile strength of a new synthetic fiber that will be...

A product developer is investigating the tensile strength of a new synthetic fiber that will be used

to make cloth for men's shirts. Strength is usually affected by the percentage of cotton used in the

blend of material for the fiber. The engineer conducts a completely randomized experiment with

five levels of cotton and replicates the experiment five time. The data are shown bellow

Cotton weight percent

Observation

15

20

25

30

35

1

7

12

14

19

7

2

7

17

19

25

10

3

15

12

19

22

11

4

11

18

18

19

15

5

9

18

18

23

11

a) Is there evidence to support the claim that cotton content affects the mean tensile strength at a = 0.05?

b) Is there a significance difference in a percent conent among the groups? What would be the percent content that you would recommend? Justify your answer

In: Statistics and Probability

Use R-Studio to plot this PAIRED SAMPLES T-TEST To motivate citizens to conserve gasoline, the government...

Use R-Studio to plot this PAIRED SAMPLES T-TEST

To motivate citizens to conserve gasoline, the government is considering mounting a nationwide conservation campaign. However, before doing so on a national level, it decides to conduct an experiment to evaluate the effectiveness of the campaign. For the experiment, the conservation campaign is conducted in a small but representative geographical area. Twelve families are randomly selected from the area, and the amount of gasoline they use is monitored for 1 month before the advertising campaign and for 1 month after the campaign. The following data are collected:

Family

A

B

C

D

E

F

G

H

I

J

K

L

Before

55

43

51

62

35

48

58

45

48

54

56

32

After

48

38

53

58

36

42

55

40

49

50

58

25

In: Statistics and Probability

Benzene is a known human carcinogen. The boiling point of benzene is 80. °C (reference 1)....

Benzene is a known human carcinogen. The boiling point of benzene is 80. °C (reference 1).

a) Research online to find the short term exposure limit (STEL) for benzene. What does the STEL mean?

b) A friend is planning to do an experiment with liquid benzene at 21 °C on the open bench top in a small   (18 m3 ) poorly ventilated room (i.e. consider the room to be a closed system for this question). Convert the STEL to vapour pressure for this room.

c) Calculate the theoretical vapour pressure of benzene inside the room at 21 °C. Use your data to explain to your friend why he can or cannot do the experiment.

d) Fully explain why the following equation (derived from the ideal gas law) cannot be used to calculate the vapour pressure/temperature data at another temperature/pressure. P1/T1 = P2/T2

Thanks!

In: Chemistry

Answer the following questions thoroughly. Use correct grammar and punctuation. 1) A student observes the following...

Answer the following questions thoroughly. Use correct grammar and punctuation.

1) A student observes the following spinner and claims that the color red has the highest probability of appearing, since there are two red areas on the spinner. What is your reply? Your answers should include facts, rules, any definitions necessary to explain why the student is correct or incorrect.

2) In class, an experiment of flipping a coin is performed.

Pretend that you are introducing the concept of probability and introducing the terms 1) experiment, 2) outcomes, 3)sample space, 4) theoretical probability, and 5) empirical probability. Explain these terms, as if you were speaking to a 5th grade class, as if they knew nothing about probability. You will need to tell the class what each term , 1-5, is represented by in this particular example. Use correct grammar and punctuation.

In: Statistics and Probability

During an experiment to simple vapour compresion cycles in the HVAC lab at Faculty of Engineering,...



During an experiment to simple vapour compresion cycles in the HVAC lab at Faculty of Engineering, Rabigh , the following data are obtained:-
• The temperature enter to the compressor is "saturated vapor condition".
• The temperature exit the compressor is 55 0C.
• The temperature enter to the expansion device is 18.5 0C.
• The evaporator gauge pressure is 3.05 bar.
• The condenser gauge pressure is 10.7 bar.
• The volume flow rate at the evaporator entrance is 1.5 lit,/min
Complete the thermos-fluid Lab. Experiment #1 (attached file) that include the following exercises:-
Exercise No.1
Representation of the refrigeration cycle on the p-h diagram
Complete the table for inlet and exit conditions from each component (compressor, condenser, expansion device, and evaporator).
.
Exercise No.2
Energy analysis of compressor

Exercise No.3
Energy analysis of condenser

Exercise No.4
Energy analysis of evaporator

Exercise No.5
Calculate the coefficient of performance and refrigeration capacity?

In: Mechanical Engineering

Construct a 95% confidence interval for an experiment that found the sample mean temperature for a...

  1. Construct a 95% confidence interval for an experiment that found the sample mean temperature for a certain city in August was 101.82, with a population standard deviation of 1.2. There were 6 samples in this experiment.
  1. A group of 10, foot - surgery patients had a mean weight of 240 pounds. The sample standard deviation was 25 pounds. Find a confidence interval for a sample for the true mean weight of all foot – surgery patients. Find a 95% Confidence Interval.
  1. 510 people applied to the Bachelor’s in Elementary Education program at Florida State College. Of those applicants, 57 were men. Find the 90% Confidence Interval of the true proportion of men who applied to the program.

  1. A study revealed that 65% of men surveyed supported the war in Afghanistan and 33% of women supported the war. If 100 men and 75 women were surveyed, find the 90% confidence interval for the data’s true difference in proportions.

In: Computer Science

A charge neutral macrocyclic ligand having four donor atoms froms a red, diamagnetic complex of Ni(II)....

A charge neutral macrocyclic ligand having four donor atoms froms a red, diamagnetic complex of Ni(II). The counter ions for this complex is the very weak Lewis base, ClO4-. When ClO4- is replaced by thiocyanate, violet complex forms.

a. Draw the structures of the red and violet complexes such that thier geometires can be decerned based only on your drawings.

b. Draw the d-orbital slitting diagrams of the red and violet complexes such that the relative energies of the orbitals in the two complexes can be compared.

c. Wse your orbital diagrams to show were the d electroms reside in each complex. Explain your electron configurations.

d. describe an experiment that you could do to test whether your predicted electron configurations are reasonable. Show what the results of this experiment would be for the d electron configureation that you showed in part c

In: Chemistry

) Computers in some vehicles calculate various quantities related to performance.  One of these is the fuel...

  1. ) Computers in some vehicles calculate various quantities related to performance.  One of these is the fuel efficiency, or gas mileage, usually expressed as miles per gallon (mpg).  For one vehicle equipped in this way, the car was set to 60 miles per hour by cruise control, and the mpg were recorded at random times.  Here are the mpg values from the experiment:

37.2     21.0     17.4     24.9     27.0     36.9     38.8     35.3     32.3     23.9

19.0     26.1     25.8     41.1     34.4     32.5     25.3     26.5     28.2     22.1

The vehicle sticker information for the vehicle states a highway average of 27 mpg.  Perform a hypothesis test at 5% significance level to determine if the results of this experiment are consistent with the vehicle sticker.

  1. (30 points) Give the hypotheses, test statistic, rejection region, p-value, decision, and interpretation.
  2. (5 points) What would a Type II error be in this situation?

In: Statistics and Probability

1. Define the ff: A. Heat- B. Heat capacity- 2. Why is it desirable to have...

1. Define the ff:
A. Heat-

B. Heat capacity-

2. Why is it desirable to have the water a few degrees colder than room temperature when the initial temperature is taken?

3. Why is the mass of the outer shell of the calorimeter and the insulating ring not included in taking data for Calorimetry?

6. Why should the hot metal be dry before it is introduced into the cold water? 837 calories of heat are required to heat 100.00 grams of copper from 0.0 C to 100.0 C. What is the specific heat of copper?

***Determining specific heat through insulating through coffee cup. Aluminum is heated and then immediately put in a thermal cup containing water.. Shaked.. then Final Temperature is determined.

4. What does this experiment show about the specific heat of water?

5. How does the conductivity of the metal used in this experiment affect the accuracy of the results?

In: Physics