Homework Answers
Porbbaility grpahs showing that the data flow is linear without any influnced variables. Box plot clearly that the data distirbution is normal and seems to be symmetric flow without any outliers.
Answer: The normal probability plot approximately linear, so a t-interval should be constructed.
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From the normal probability plot and boxplot, judge whether a Hinterval should be constructed. Should a...
The manufacturer of hardness testing equipment uses stool-ball inderters to penetrate metal that is being tested....
The manufacturer of hardness testing equipment uses stool-ball inderters to penetrate metal that is being tested. However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be tested. Because of differences between the two types of indenters, it is suspected that the two methods will produce different hardness readings. The metal specimens to be tested are large enough so that two Indentions can be made. Therefore, the manufacturer ses both...
Construct a 95% confidence interval to judge whether the two indenters result in different measurements, where...
Construct a 95% confidence interval to judge whether the two
indenters result in different measurements, where the differences
are computed as 'diamond minus steel ball'.
Upper Bound
Lower Bound
Home - ← → O ώ 凸 mathx com Student PlayerHomework.aspx?homeworkid=5134701948 questionid=5&flushed=false&cld- ☆ 左 久 MAT-240-T3349 Applied Statistics 19EW3 sey Charlesworth1 1/31/19 12:32 PM Homework: 5-2 MyStatLab: Module Five Problem Set Save Score: 0 of 5 pts 9 of 14 (8 complete) HW Score: 33.16%, 21.55 of 65 pts 11.2.13 Question...
Question 9 5 pts Major League Baseball Games The following scatter plot shows the number of...
Question 9 5 pts Major League Baseball Games The following scatter plot shows the number of home runs versus the number of attendance (in 1000 people) for some randomly selected games. Attendance and Runs for 11 Baseball Games. 6 8 10 Runs 2 4 O 20 30 40 -50 Attandance x1000) The following shows the output generated by a software for the least-square regression line using this data: Simple linear regression results: Runs - 1.020 +0.1590 Attendance Sample size: 11...
The tables below shows the results of a multiple linear regression analysis relating the sale price...
The tables below shows the results of a multiple linear regression analysis relating the sale price y of a house (in dollars) versus LandVal (in dollars), Improvement (in dollars) and Area (in square feet): MS Source DF 877,967292656 46.66 100,349 6,272 978,316 0.00001 Regression 3 Residual16 Total 19 Predictor CoeffStd. ErrorT-valueP-value Intercept 1470 5746 0.26 0801 LandVal08145 0.5122 1.59 Improvement 0.8204 0.2112 3.88 2.05 0.131 0.001 Area 13.529 6.856 0.057 At alpha, a - 0.01 we can say that the...
7. Determine whether a normal distribution or a normal distribution or t distribution should be used...
7. Determine whether a normal distribution or a normal distribution or t distribution should be used or whether neither of should be used to construct a confidence interval for the mean. (Section 6.2) Circle the correct answer. in a random sample of 22 families, the mean weekly food expense was $95.60 with a sample standard deviation of $22.50. Assume the weekly food expense is normally distributed. A) Normal distribution B) t-distribution C) Neither For a sample of 20 IQ scores...
Using expressions 2.29a and 2.29b from the textbook, plot normal stress (σθ) and shear stress (τθ) versus angle of an in...
Using expressions 2.29a and 2.29b from the textbook, plot normal
stress (σθ) and shear stress (τθ) versus angle of an inclined
stress element for a bar loaded by axial forces. Use Matlab or
Excel. What are slip bands? Why slip bands occur when mild steel
bars are loaded in tension. Explain your answer using the plotted
graphs.
results in the following expressions for the normal and shear stresses: (2-29a) (1 2 cos 20) (sin 20) 2 (2-29b) O sin 0...
The following data represent the pH of rain for a random sample of 12 rain dates, A normal probability plot suggests the data could come from a population that is normaly distributed. A boxplot indic...
The following data represent the pH of rain for a random sample of 12 rain dates, A normal probability plot suggests the data could come from a population that is normaly distributed. A boxplot indicates there are no outliers. Complete parts (a) through (d) below. 5.20 5.02 4.87 5.72 4.57 4.76 4.89 474 4.56 4.80 5.19 5.30 (a) Determine a point estimate for the population mean. A point estimate for the population mean is Round to two decimal places as...
The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is being tested....
The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is being tested. However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be tested. Because of differences between the two types of indenters, it is suspected that the two methods will produce different hardness readings. The metal specimens to be tested are large enough so that two indentions can be made. Therefore, the manufacturer uses both...
9 of 14 (14 complete) HW Score: 60.51%, 12.1 of 20 pts Score: 0 of 1...
9 of 14 (14 complete) HW Score: 60.51%, 12.1 of 20 pts Score: 0 of 1 pt atistic: X 11.2.13 A Question Help uired) The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is being tested. However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be tested. Because of differences between the two types of indenters, it is suspected that the two methods will produce...
The manufacturer of hardress testing equipment uses steel-bal inderters to penetrate metal that is being fested....
The manufacturer of hardress testing equipment uses steel-bal inderters to penetrate metal that is being fested. However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be usted. Because of differences between the two types of indeters, it is suspected that the two methods will produce different hardness readings. The metal specimens to be tested are large enough so that two Indentions can be made. Therefore, the manufacturer uses both...
The manufacturer of hardness testing equipment uses stool-ball inderters to penetrate metal that is being tested. However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be tested. Because of differences between the two types of indenters, it is suspected that the two methods will produce different hardness readings. The metal specimens to be tested are large enough so that two Indentions can be made. Therefore, the manufacturer ses both...
Construct a 95% confidence interval to judge whether the two
indenters result in different measurements, where the differences
are computed as 'diamond minus steel ball'.
Upper Bound
Lower Bound
Home - ← → O ώ 凸 mathx com Student PlayerHomework.aspx?homeworkid=5134701948 questionid=5&flushed=false&cld- ☆ 左 久 MAT-240-T3349 Applied Statistics 19EW3 sey Charlesworth1 1/31/19 12:32 PM Homework: 5-2 MyStatLab: Module Five Problem Set Save Score: 0 of 5 pts 9 of 14 (8 complete) HW Score: 33.16%, 21.55 of 65 pts 11.2.13 Question...
Question 9 5 pts Major League Baseball Games The following scatter plot shows the number of home runs versus the number of attendance (in 1000 people) for some randomly selected games. Attendance and Runs for 11 Baseball Games. 6 8 10 Runs 2 4 O 20 30 40 -50 Attandance x1000) The following shows the output generated by a software for the least-square regression line using this data: Simple linear regression results: Runs - 1.020 +0.1590 Attendance Sample size: 11...
The tables below shows the results of a multiple linear regression analysis relating the sale price y of a house (in dollars) versus LandVal (in dollars), Improvement (in dollars) and Area (in square feet): MS Source DF 877,967292656 46.66 100,349 6,272 978,316 0.00001 Regression 3 Residual16 Total 19 Predictor CoeffStd. ErrorT-valueP-value Intercept 1470 5746 0.26 0801 LandVal08145 0.5122 1.59 Improvement 0.8204 0.2112 3.88 2.05 0.131 0.001 Area 13.529 6.856 0.057 At alpha, a - 0.01 we can say that the...
7. Determine whether a normal distribution or a normal distribution or t distribution should be used or whether neither of should be used to construct a confidence interval for the mean. (Section 6.2) Circle the correct answer. in a random sample of 22 families, the mean weekly food expense was $95.60 with a sample standard deviation of $22.50. Assume the weekly food expense is normally distributed. A) Normal distribution B) t-distribution C) Neither For a sample of 20 IQ scores...
Using expressions 2.29a and 2.29b from the textbook, plot normal
stress (σθ) and shear stress (τθ) versus angle of an inclined
stress element for a bar loaded by axial forces. Use Matlab or
Excel. What are slip bands? Why slip bands occur when mild steel
bars are loaded in tension. Explain your answer using the plotted
graphs.
results in the following expressions for the normal and shear stresses: (2-29a) (1 2 cos 20) (sin 20) 2 (2-29b) O sin 0...
The following data represent the pH of rain for a random sample of 12 rain dates, A normal probability plot suggests the data could come from a population that is normaly distributed. A boxplot indicates there are no outliers. Complete parts (a) through (d) below. 5.20 5.02 4.87 5.72 4.57 4.76 4.89 474 4.56 4.80 5.19 5.30 (a) Determine a point estimate for the population mean. A point estimate for the population mean is Round to two decimal places as...
The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is being tested. However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be tested. Because of differences between the two types of indenters, it is suspected that the two methods will produce different hardness readings. The metal specimens to be tested are large enough so that two indentions can be made. Therefore, the manufacturer uses both...
9 of 14 (14 complete) HW Score: 60.51%, 12.1 of 20 pts Score: 0 of 1 pt atistic: X 11.2.13 A Question Help uired) The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is being tested. However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be tested. Because of differences between the two types of indenters, it is suspected that the two methods will produce...
The manufacturer of hardress testing equipment uses steel-bal inderters to penetrate metal that is being fested. However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be usted. Because of differences between the two types of indeters, it is suspected that the two methods will produce different hardness readings. The metal specimens to be tested are large enough so that two Indentions can be made. Therefore, the manufacturer uses both...
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