Homework Answers
In economics Grade Point Average GPA is a simple way to determine what is the average of different economic data .
Say for example, if unemployment rate of five diferent countries are given then if simple Grade Point Average is to be find then sum of all the five countries unemployment rate will be taken and divide it by the total number of countries.
A 96% confidence interval for GPA values is (2.67, 3.15). What is the estimated mean GPA...
A 96% confidence interval for GPA values is (2.67, 3.15). What is the estimated mean GPA of the population, and what is the margin of error?
3. If Eha-115 GPa, E-1GPa and Eb-19.9 GPa what must the value of β be if...
3. If Eha-115 GPa, E-1GPa and Eb-19.9 GPa what must the value of β be if the Micromechanical Model for Young's Modulus of Bone is used. Assume the volume fraction is 1.0.
Problem 4 The strength of an aluminum alloy is normally distributed with mean 10 GPa and standard deviation 14 GPa. What is the probability that a specimen of this alloy will have a strength greater...
Problem 4 The strength of an aluminum alloy is normally distributed with mean 10 GPa and standard deviation 14 GPa. What is the probability that a specimen of this alloy will have a strength greater than 12 GPa? What is the 95th percentile of the strength of this alloy? a) b)
Problem 4 The strength of an aluminum alloy is normally distributed with mean 10 GPa and standard deviation 14 GPa. What is the probability that a specimen of this...
Problem 16.01 maduli of elasticity the metal and axide are, respectively, 61 GPa and 400 GPa,...
Problem 16.01 maduli of elasticity the metal and axide are, respectively, 61 GPa and 400 GPa, what is the (a) upper-bound, and (b) lower- bound madulus of elasticity values (in GPa) for a composite that has a composition of 33 vole% of axide particles. GPa hi GPa Click if you would like to Show Work for this question: Open Show Work
2. We want to investigate the degree how cummulative GPA for each student (GPA) is affected...
2. We want to investigate the degree how cummulative GPA for each student (GPA) is affected by the peers. This is based on the general belief that students in a group of students with higher GPA are likely to have higher GPA. The model is: GPA= Bo + B avg Peer GPA + Byability + u. where avg PeerGPA is the average GPA for the peer students and ability is a student's own ability We assume that this equation satisfies...
Estimated College GPA=3.26+(−0.0361)(High School GPA). GPAs College GPA High School GPA 2.00 3.49 3.45 3.77 3.38...
Estimated College GPA=3.26+(−0.0361)(High School GPA). GPAs College GPA High School GPA 2.00 3.49 3.45 3.77 3.38 4.64 3.59 2.23 2.90 3.45 3.45 3.75 Step 2 of 3 : Compute the mean square error (s 2 e ) for the model. Round your answer to four decimal places.
For a continuous carbon fiber Em=3 GPa and Ef=300 GPa, find the minimum volume fraction of...
For a continuous carbon fiber Em=3 GPa and Ef=300 GPa, find the minimum volume fraction of fiber needed to achieve a composite modulus equal to that of titanium, 225 GPa. What would be the transverse modulus?
Professor Hall wants to estimate what the average GPA will be for the students in his...
Professor Hall wants to estimate what the average GPA will be for the students in his marketing research class this semester with 99% confidence and acceptable error of ±2%. Based on last semester’s GPA’s, he knows the variability in GPA is about 0.3 points. Calculate the sample size needed.
A survey of 800 KCC students compares their gender and GPA. Here are the results: GPA...
A survey of 800 KCC students compares their gender and GPA. Here are the results: GPA under 2.5 GPA 2.5 - 3.5 GPA over 3.5 Male 80 180 60 Female 100 270 110 Find these probabilities: P (Male) P (Male and GPA under 2.5) P (Male or GPA under 2.5) P (Female / GPA over 3.5) P (GPA over 3.5 / Femal P (GPA at least 2.5 / Male) P (Male / Female) Are gender and GPA dependent? Explain...
GPA: The mean GPA at a certain university is 3.45. Following are GPAs for a random...
GPA: The mean GPA at a certain university is 3.45. Following are GPAs for a random sample of 20 business students from this university. 2.25 3.58 2.14 3.14 2.54 2.74 3.84 3.51 3.65 2.44 3.05 2.15 3.14 2.33 3.02 3.65 3.25 2.58 3.69 3.54 Send data to Excel Part 1 of 5 Following is a boxplot of the data. Is it reasonable to assume that the population is approximately normal? 20 25 30 35 The boxplot shows that it is...
3. If Eha-115 GPa, E-1GPa and Eb-19.9 GPa what must the value of β be if the Micromechanical Model for Young's Modulus of Bone is used. Assume the volume fraction is 1.0.
Problem 4 The strength of an aluminum alloy is normally distributed with mean 10 GPa and standard deviation 14 GPa. What is the probability that a specimen of this alloy will have a strength greater than 12 GPa? What is the 95th percentile of the strength of this alloy? a) b)
Problem 4 The strength of an aluminum alloy is normally distributed with mean 10 GPa and standard deviation 14 GPa. What is the probability that a specimen of this...
Problem 16.01 maduli of elasticity the metal and axide are, respectively, 61 GPa and 400 GPa, what is the (a) upper-bound, and (b) lower- bound madulus of elasticity values (in GPa) for a composite that has a composition of 33 vole% of axide particles. GPa hi GPa Click if you would like to Show Work for this question: Open Show Work
2. We want to investigate the degree how cummulative GPA for each student (GPA) is affected by the peers. This is based on the general belief that students in a group of students with higher GPA are likely to have higher GPA. The model is: GPA= Bo + B avg Peer GPA + Byability + u. where avg PeerGPA is the average GPA for the peer students and ability is a student's own ability We assume that this equation satisfies...
GPA: The mean GPA at a certain university is 3.45. Following are GPAs for a random sample of 20 business students from this university. 2.25 3.58 2.14 3.14 2.54 2.74 3.84 3.51 3.65 2.44 3.05 2.15 3.14 2.33 3.02 3.65 3.25 2.58 3.69 3.54 Send data to Excel Part 1 of 5 Following is a boxplot of the data. Is it reasonable to assume that the population is approximately normal? 20 25 30 35 The boxplot shows that it is...
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