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In: Statistics and Probability
5. An experiment to compare the tension bond strength of polymer latex modified mortar (Portland cement...
5. An experiment to compare the tension bond strength of polymer latex modified mortar (Portland cement mortar to which polymer latex emulsions have been added during mixing) to that of unmodified mortar resulted in ¯x = 18.12 kgf/cm 2 for the modified mortar (m=40) and ¯y = 16.87 kgf/cm 2 for the unmodified mortar (n= 32) . Let µ1, µ2 be the true average tension bond strengths for the modified and unmodified mortars, respectively. Assume that the bond strength distributions are both normal. a) Assuming that σ1 = 1.6 and σ2 = 1.4, do we have enough evidence to support the claim that true average of tension bond strengths the modified mortars is larger at level .01 b) Find a 90% confidence interval on the difference in mean batch viscosity resulting from the process change. c) How would the analysis and conclusion of part (a) change if σ1, σ2 were unknown but S1 = 1.6 and S2 = 1.4 ?.
Solutions
orchestra answered 2 years agoRelated Solutions
5. An experiment to compare the tension bond strength of polymer latex modified mortar (Portland cement...
5. An experiment to compare the tension bond strength of polymer
latex modified mortar (Portland cement mortar to which polymer
latex emulsions have been added during mixing) to that of
unmodified mortar resulted in ¯x = 18.12 kgf/cm 2 for the modified
mortar (m=40) and ¯y = 16.87 kgf/cm 2 for the unmodified mortar (n=
32) . Let µ1, µ2 be the true average tension bond strengths for the
modified and unmodified mortars, respectively. Assume that the bond
strength distributions...
An experiment to compare the tension bond strength of polymer latex modified mortar (Portland cement mortar...
An experiment to compare the tension bond strength of polymer
latex modified mortar (Portland cement mortar to which polymer
latex emulsions have been added during mixing) to that of
unmodified mortar resulted in x = 18.15 kgf/cm2
for the modified mortar (m = 42) and y = 16.82
kgf/cm2 for the unmodified mortar (n = 31). Let
μ1 and μ2 be the true
average tension bond strengths for the modified and unmodified
mortars, respectively. Assume that the bond strength distributions...
An experiment to compare the tension bond strength of polymer latex modified mortar (Portland cement mortar...
An experiment to compare the tension bond strength of polymer
latex modified mortar (Portland cement mortar to which polymer
latex emulsions have been added during mixing) to that of
unmodified mortar resulted in x = 18.18 kgf/cm2
for the modified mortar (m = 42) and y = 16.89
kgf/cm2 for the unmodified mortar (n = 30). Let
μ1 and μ2 be the true
average tension bond strengths for the modified and unmodified
mortars, respectively. Assume that the bond strength distributions...
Compare and contrast Portland cement concrete and mortar.
Compare and contrast Portland cement concrete and mortar.
Compare the methods of measuring tensile strength by (a) direct tension; (b) splitting tension; (c) flexure.
Compare the methods of measuring tensile strength by (a) direct
tension; (b) splitting tension; (c) flexure.
1) list two hydration products of portland cement; one providing strength and other causing high pH...
1) list two hydration products of portland cement; one providing
strength and other causing high pH ?
2) water reducing admixture ( including superplasticizer or high
range water reducer) can be used to achieve the required
workability with lesss amount of water. what is the mechanism of
water reducer?
Civil Engineering materials class
**a**s*****d**f***CEMENT EXPERIMENTS QUESTION 1: The strength class of the cement is determined by which experiment, how...
**a**s*****d**f***CEMENT EXPERIMENTS
QUESTION 1: The strength class of the cement is determined by
which experiment, how is it
calculated ?
(Materials, experiment instruments, preparation and procedure,
experiments and calculations)
An experiment to compare the spreading rates of five different brands of yellow interior latex paint...
An experiment to compare the spreading rates of five different
brands of yellow interior latex paint available in a particular
area used 4 gallons (J = 4) of each paint. The sample
average spreading rates (ft2/gal) for the five brands
were x1. = 462.0, x2. =
512.8, x3. = 437.5, x4. =
469.3, and x5. = 532.1. The computed value of
F was found to be significant at level α = 0.05.
With MSE = 480.8, use Tukey's procedure to...
Compare the relative strength of the carbon to carbon a) SINGLE BOND, b) DOUBLE BOND, and...
Compare the relative strength of the carbon to carbon a)
SINGLE BOND, b) DOUBLE BOND, and c) TRIPLE BOND. What do you think
will be the relative absorbance of each of these bonds? Explain the
reason for your answer.
1.An experiment to compare the spreading rates of five different brands of yellow interior latex paint...
1.An experiment to compare the spreading rates of five different
brands of yellow interior latex paint available in a particular
area used 4 gallons (J = 4) of each paint. The sample average
spreading rates (ft2/gal) for the five brands were x1. = 462.0, x2.
= 512.8, x3. = 437.5, x4. = 469.3, and x5. = 532.1. The computed
value of F was found to be significant at level α = 0.05. With MSE
= 490.8, use Tukey's procedure to...
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