Skinfold Thickness Procedure One method of estimating body fat is through skinfold thickness measurement using from three to nine different standard anatomical sites around the body from the right side only (for consistency). The tester pinches the skin at the appropriate site to raise a double layer of skin and the underlying adipose tissue, but not the muscle. Calipers are then applied 1 centimeter below and at right angles to the pinch and a reading is taken 2 seconds later. The
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Fundamentals of Statistics (5th Edition)
- Find the mean hourly cost when the cell phone described above is used for 240 minutes.arrow_forwardAt the start of a trip, the odometer on a car read 21,395. At the end of the trip, 13.5 hours later, the odometer read 22,125, Assume the scale on the odometer is in miles. What is the average speed the car traveled during this trip?arrow_forwardIf someone's diastolic pressure is above average, would you expect that person's systolic pressure to be above or below average?arrow_forward
- Calculate the number of samples needed (margin of error =5%)for the population you are assigned with using the following a Cochran’s formula (z=1.96,p=0.6) b slovens formulaarrow_forwardFind the margin of error for the given data values of c,s and n C = 0.92, s = 460 and n = 42 Round to two decimalsarrow_forwardA new machine has just been installed to produce printed circuit boards. One of the critical measurements is the thickness of the resistance layer. The quality control inspector randomly selects five boards each half-hour, measures the thickness, and records the results. The measurements (in millimeters) for the period 8:00 a.m. to 10:30 a.m. follow. Thickness (millimeters) Time 1 2 3 4 5 8:00 87.2 87.3 87.9 87.0 87.0 8:30 86.9 88.5 87.6 87.5 87.4 9:00 87.8 88.6 86.8 87.7 88.2 9:30 86.0 88.0 87.2 87.6 87.1 10:00 86.8 87.0 86.9 87.3 87.3 10:30 88.0 86.2 87.4 87.1 87.9 Click here for the Excel Data Filea. Determine the control limits for the mean and the range. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.) Mean of the sample means = LCL = UCL = Mean of the sample ranges = LCL = UCL = c-1. Are any means out of control?multiple choice 1…arrow_forward
- Find the raw score which corresponds to z=1.6?arrow_forwardDescribe about MEAN SQUARE (M S ) AND THE F RATIO.arrow_forwardA new machine has just been installed to produce printed circult boards. One of the critical measurements is the thickness of the resistance layer. The quality control inspector randomly selects five boards each half-hour, measures the thickness, and records the results. The measurements (in millimeters) for the period 8:00 a.m. to 10:30 a.m. follow. Thickness (millimeters) Time 2 3 4 5 8:00 87.3 87.5 88.0 87.1 87.0 8:30 86.9 88.5 87.6 87.5 87.4 9:00 87.8 88.5 86.9 87.4 88.1 9:30 86.0 88.0 87.2 87.6 87.1 10:00 86.8 86.8 86.8 87.2 87.3 10:30 88.0 86.2 87.3 87.2 87.9 I Click here for the Excel Data File a. Determine the control limits for the mean and the range. (Leave no cells blank - be certaln to enter "O" wherever requlred. Round your answers to 2 decimal places.) Mean of the sample means LCL UCL Mean of the sample ranges LCL UCL =arrow_forward
- A doctor notes her patients temperature in degrees Fahrenheit every hour to make sure the peat isn’t does not get fever. What is the level of measurement of the data.arrow_forwardAn ecologist hypothesizes that birds with longer wing spans use wider tree branches. The ecologist captured male birds, measured their wing span and other characteristics in millimeters, and then marked and released them. During the ensuing winter, the ecologist repeatedly observed the marked birds as they foraged for food on tree branches. He noted the branch diameter on each occasion, and calculated the average branch diameter for each bird in centimeters. The measurement data are below. What can the ecologist conclude with an α of 0.05 wing span branch diameter 79.380.180.781.579.580.781.180.580.7 1.561.531.391.041.391.021.211.311.21 A) What is the appropriate statistic? Then Compute the statistic B) Compute the appropriate test statistic(s) for H1: ρ > 0 critical value = test statistic= C) Effect Sizearrow_forwardfix) Area = 0.70 What percentile does x represent?arrow_forward
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