3. Data on the amount of wear measured with two different materials A and B for shoes is shown: Shoes A A Foot B B Foot d (B-A) 1 13.2 L 14.0 R 0.8 2 8.2 L 8.8 R 0.6 3 10.9 R 11.2 L 0.3 4 14.3 L 14.2 R -0.1 5 10.7 R 11.8 L 1.1 6 6.6 L 6.4 R -0.2 7 9.5 L 9.8 R 0.3 8 10.8 L 11.3 R 0.5 9 8.8 R 9.3 L 0.5 10 13.3 L 13.6 R 0.3 Does the type of material matter for the wear on the shoes? What is the confidence limit that there is at least some difference? What is that difference? Does the choice of foot that the material was used on matter? Is this "good" data?
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- Subps SPorti that highpn Plopgrt a a 1% level of significance. wea # Engle wood O Hoi Mi Mz %3D 2.Q.2. Because of potential variability in aging due to different castings and segments on the castings, a Latin square design with N=7 was used to investigate the effect of heat treatment on aging. With A= castings, B = Σχ = 297,216.90, segments, C = heat treatments, summary statistics include x... = 3815.8, Σχ = 297,155.01, and 297,200.64, = 297,317.65. Obtain the ANOVA table and test at level .05 the hypothesis that heat treatment has no effect on aging.How wellmaterials conduct heat matters when designing houses, forexample. Conductivity is measured in terms of watts of heatpower transmitted per square meter of surface per degree Celsius of temperature difference on the two sides of the material.The National Institute of Standards and Technology (NIST)provides data on properties of materials. Here are 9 NISTmeasurements of the heat conductivity of a particular type offibrous-glass board: 0.0339 0.0337 0.0334 0.0334 0.03330.0333 0.0333 0.0332 0.0330 (a) We can consider this an SRS of all specimens of fibrousglass board of this type. Make a stemplot. Is there any sign ofmajor deviation from Normality? (b) Give a 95% confidence interval for the mean conductivity. (c) Is there significant evidence at the 5% level that themean conductivity of this type of fibrous-glass board is not0.0330?
- 10. 18.30 Temperatures are measured at various points on a heated plate (Table P18.30). Estimate the temperature at (a) x = 4, y = 3.2, and (b) x = 4.3, y = 2.7. TABLE P18.30 Temperature (°C) at various points on a square heated plate. x = 0 x = 2 y = 0 y 2 y = 4 y=6 y 8 100.00 85.00 70.00 55.00 40.00 90.00 64.49 48.90 38.78 35.00 x = 6 70.00 48.15 35.03 30.39 27.07 30.00 25.00 x = 4 80.00 53.50 38.43 x = 8 60.00 50.00 40.00 30.00 20.00One operation of a mill is to cut pieces of steel into parts that will later be used as the frame for front seats in an automobile. The steel is cut with a diamond saw and requires the resulting parts to be within 10.005 inch of the length specified by the automobile company. Data are collected from a sample of 50 steel parts and are shown in the following table. The measurement reported is the difference in inches between the actual length of the steel part, as measured by a laser measurement device, and the specified length of the steel part. For example, the first value, -0.003, represents a steel part that is 0.003 inch shorter than the specified length. Complete parts a through c Click the icon to view the data table. a. Construct a frequency distribution Difference in Length -0.005 but less than -0.003: -0.003but less than -0.001 -0.001but less than 0.001 0.001but less than 0.003 0.003but less than 0.005 Frequency Difference Between Actual and Specified Lengths 0.002 0 -0.003…4. A tank is discharging water through an orifice at a depth (x) meter below the surface of water whose area (A) m². The following are the values of the corresponding values of (A)? A 1.257 1.39 1.52 1.65 1.809 1.962 2.123 2.295 2.462 2.650 2.827 1.5 1.65 1.8 1.95 2.10 2.25 2.40 2.55 2.70 2.85 3.00 Using the formula: 3 (0.018) T = A dx %3D 1.5 Calculate (T) the time in second for the level of water to drop from (3.0 m) to (1.5 m) above the orifice?
- O Q-3.pdf b Answered: a study of pollution in x + A Imsk.wyb.ac.lk/pluginfile.php/134200/mod_resource/content/1/Q-3.pdf M Gmail O YouTube O Maps E Reading list Q-3.pdf 1 / 1 100% + 42 41 4 8 14 6 (b) In a study of pollution in a water stream, the concentration of pollution is measured at 5 different locations. The locations are at different distances to the pollution source. The distances and the average pollution are given in the table below: Distance to the pollution 10 2 source (in km) 4 6 8 (X) Average 9.32 concentration 11.5 10.2 10.3 9.68 (Y) (i) Calculate the correlation coefficient for these data and comment 25 on the relationship between Y and X. (ii) Find the equation of the regression line. 25 Q-3.pdf Show all ENG 9:24 PM P Type here to search Ps 79°F INTL 19-Feb-22A paper investigated the driving behavior of teenagers by observing their vehicles as they left a high school parking lot and then again at a site approximately mile from the school. Assume that it is reasonable to regard the teen drivers in this 2 study as representative of the population of teen drivers. Amount by Which Speed Limit Was Exceeded Female Driver -0.1 0.4 1.1 0.7 1.1 1.2 0.1 0.9 0.5 0.5 (a) Use a .01 level of significance for any hypothesis tests. Data consistent with summary quantities appearing in the paper are given in the table. The measurements represent the difference between the observed vehicle speed and the posted speed limit (in miles per hour) for a sample of male teenage drivers and a sample of female teenage drivers. (Use males-females. Round your test statistic to two decimal places. Round your degrees of freedom down to the nearest whole number. Round your p-value to three decimal places.) t = df = P= Male Driver 1.4 1.2 0.9 2.1 0.7 1.3 3 1.3 0.6 2.1 (b) Do…A paper investigated the driving behavior of teenagers by observing their vehicles as they left a high school parking lot a then again at a site approximately mile from the school. Assume that it is reasonable to regard the teen drivers in this 2 study as representative of the population of teen drivers. Amount by Which Speed Limit Was Exceeded Female Driver -0.1 0.4 1.1 0.7 1.1 1.2 0.1 0.9 0.5 0.5 (a) Use a .01 level of significance for any hypothesis tests. Data consistent with summary quantities appearing in the pap are given in the table. The measurements represent the difference between the observed vehicle speed and the posted speed limit (in miles per hour) for a sample of male teenage drivers and a sample of female teenage drivers. (Use males #females Round your test statistic to two decimal places. Round your degrees of freedom down to the nearest whole number. Round your p-value to three decimal places.) t= df = P = Male Driver 1.4 1.2 0.9 2.1 0.7 1.3 3 1.3 0.6 2.1
- Cellulon, a manufacturer of home insulation, wants to develop guidelines for builders and consumers on how the thickness of the insulation in the attic of a home and the outdoor temperature affect natural gas consumption. In the laboratory, it varied the insulation thickness and temperature. A few of the findings are:The NTSB wants to estimate the difference between the average stopping distance for a car traveling 40 MPH on wet versus dry pavement. Ten vehicles were used for the study where each vehicle was driven at 40 MPH and came to a sudden stop on both wet pavement and dry pavement. The stopping distance was measured (feet) for each pavement condition and the data is shown below followed by Minitab output with the CI. Vehicle 1 2 3 4 5 6 7 8 9 10 Wet 107 101 109 112 105 106 111 108 98 116 Dry 72 69 74 73 72 72 74 74 67 79 Estimation for Paired Difference Mean StDev SE Mean 95% CI forμ_difference 34.700 2.452 0.775 (32.946, 36.454) a. Interpret the 95% CI.b. What assumption is needed for this CI to be valid?