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- AA stion list uestion 1 "uestion 2 uestion 3 uestion 4 uestion 5 uestion 6 -uestion 7 4:41 uestion 8 uestion 9 < mylab.pearson.com K Listed below are the measured radiation rates incorresponding to these cell phones: iPhone X, HTC Desire 310, LG G3, Motorola VE465, OnePlus 5, and Samsung Galaxy S8. The data are from the Federal Communications Commission. Find the range, variance, and standard deviation for the given sample data. Are any of the resulting statistics helpful in selecting a cell phone for purchase? 0.97 0.65 0.48 1.09 1.37 1.52 D W The range is 1.040 Ko (Type an integer or decimal rounded to three decimal places as needed.). The variance is ▼ (Type an integer or decimal rounded to three decimal places as needed.) A nAn 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. = 427.5, x4. = 469.3, and x5. = 532.1. The computed value of F was found to be significant at level ? = 0.05. With MSE = 300.8, use Tukey's procedure to investigate significant differences between brands. (Round your answer to two decimal places.)31. For a normal distribution with μμ = 19 and σσ = 6.4, determine the minimum data value to be in P57 (57 percentile). minimum data value = [three decimal accuracy]
- Shafts manufactured for use in optical storage devices have diameters that are normally distributed with mean μ = 0.652 cm and standard deviation σ = 0.003 cm. The specification for the shaft diameter is 0.650 ± 0.005 cm. a) What proportion of the shafts manufactured by this process meet the specifications? b) The process mean can be adjusted through calibration. If the mean is set to 0.650 cm, what proportion of the shafts will meet specifications? c) If the mean is set to 0.650 cm, what must the standard deviation be so that 99% of the shafts will meet specifications?Given random X ~ N(y,y), where y>0 and normal distribution N with mean = sd. a) find confident interal for y b) find confident level of [average,sum] from part a.Please send me answer within 10 min!! I will rate you good for sure!! Please provide an explanation of your solution!!
- A sample of 3 measurements are taken and recorded: a =8, y = 10 and z = 7 The sample mean is: x = = 8.33 Fill in the table below. aj (a; - x)2 Ex: 5.34 Ex: 5.34 Ex: 5.34 82 = (z-z)*+(y-a)* +(z-z) Ex: 5.34 (z-2)*+(y-z)* +(z-) = Ex: 5.34The cooling system in a nuclear submarine consists of an assembly of welded pipes through which a coolant is circulated. Specifications require that weld strength must exceed 150 psi. A random sample of 20 welds resulted in a sample mean of 153.7 psi and a sample standard deviation of 11.3 psi. Which side(s) is (are) the critical region(s) located? O left side Oright side O both left and right sides O neither left nor right since there is no critical regioncONCLUSION: Leaf Area Index (LAI) was found to be independent on soil nitrogen content
- Fiber Density. In the article “Comparison of Fiber Counting by TV Screen and Eyepieces of Phase Contrast Microscopy” (American Industrial Hygiene Association Journal, Vol. 63, pp. 756–761), I. Moa et al. reported on determining fiber density by two different methods. The fiber density of 10 samples with varying fiber density was obtained by using both an eyepiece method and a TV-screen method. A hypothesis test is to be performed to decide whether, on average, the eyepiece method gives a greater fiber density reading than the TV-screen method. a. identify the variable. b. identify the two populations. c. identify the pairs. d. identify the paired-difference variable. e. determine the null and alternative hypotheses. f. classify the hypothesis test as two tailed, left tailed, or right tailed.6) A normal distribution has mean 500 and variance 2500. Find the area under the normal curv the mean to 600.A random sample X,, X,., X, of size n is obtained from a normal distribution with mean, µ and variance, 100. We are interested to test H, :u = 120 against H, :µ=124. a) Show that the best critical region for the given test is X 2C.