The tar content in samples of cigar tobacco follows: 1.542 1.585 1.532 1.466 1.499 1.611 1.622 1.466 1.546 1.494 1.548 1.626 1.44 1.608 1.52 1.478 1.542 1.511 1.459 1.533 1.532 1.523 1.397 1.487 1.598 1.498 1.6 1.504 1.545 1.558 1.555 1.712 1.442 1.443 1.699 1.701 1.698 1.654 1.432 1.441 1.598 1.705 Find a 90% Cl on the mean tar content. Choose 2 answers from the choices below for the values of upper and lower limits. Do not round off the values until you got the final answers. D 1.525 O 1.513 D 1.580 O 1.598 D 1.577 D 1.504 D 1.568

The tar content in samples of cigar tobacco follows: 1.542 1.585 1.532 1.466 1.499 1.611 1.622 1.466 1.546 1.494 1.548 1.626 1.44 1.608 1.52 1.478 1.542 1.511 1.459 1.533 1.532 1.523 1.397 1.487 1.598 1.498 1.6 1.504 1.545 1.558 1.555 1.712 1.442 1.443 1.699 1.701 1.698 1.654 1.432 1.441 1.598 1.705 Find a 90% Cl on the mean tar content. Choose 2 answers from the choices below for the values of upper and lower limits. Do not round off the values until you got the final answers. D 1.525 O 1.513 D 1.580 O 1.598 D 1.577 D 1.504 D 1.568

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter29: Tolerance, Clearance, And Interference

Section: Chapter Questions

Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...

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Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector measures 10 spacers and records the following thicknesses: 0.372" 0.376" 0.379" 0.375" 0.370" 0.373" 0.377" 0.378" 0.371" 0.380" Which spacers are defective (above the maximum limit or below the minimum limit)? All dimensions are in inches.
c) Eighteen packets of Dangote Cement had their contents measured for weight. The markings on the packets indicated that the weights were 150 kilograms each. The measured weights are as shown below: 150.2kg 149.5kg 150.0kg 149.5kg 150.2kg 149.5kg 150.0kg 148.8kg i. Calculate and estimate: A. The population mean and, B. The population standard deviation of all the cement of the Dangote brand. ii.Construct a 99% confidence interval of the mean weight of the Dangote cement. iii. Test the hypothesis that the mean weight of a packet of Dangote cement is 150kg at 5% level of significance.
1. The 50 measurements of acid rain in Wisconsin, whose histogram is given on the cover page of the chapter, are 3.58 3.80 4.01 4.01 4.05 4.05 4.12 4.18 4.20 4.21 4.27 4.28 4.30 4.32 4.33 4.35 4.35 4.41 4.42 4.45 4.45 4.50 4.50 4.50 4.50 4.51 4.52 4.52 4.52 4.57 4.58 4.60 4.61 4.61 4.62 4.62 4.65 4.70 4.70 4.70 4.70 4.72 4.78 4.78 4.80 5.07 5.20 5.26 5.41 5.48 a. Calculate the median and quartiles. b. Find the 90th percentile. c. Determine the mean and standard deviation.
The average number of acres burned by forest and range fires in large new mexico country is 4,300 acres per year, with a standard debiation of 750 acre. The distribution of the number of acres burned is normal. What is the probabilty that between 2,500 and 4,200 acres will be burned in any given year?
Who is taller with respect to their own gender? (Men have a mean height of 70.4" with SD 3.0" and women have a mean height of 65.1" with SD 2.6".) Is either one unusually tall?
Determine the sample size for the estimate of mean for the following:
The diameters of ball bearings produced in a manufacturing process can be described using a uniform distribution over the interval 8.5 to 10.5 millimeters. What is the mean diameter of ball bearings produced in this manufacturing process? A. 10 millimeters B. 10.5 millimeters C. 9.5 millimeters D. 9 millimeters
The following numbers are chemical color measurements from a chemical company: a) About how many measurements are between 0.70 and 0.75? b) Make a Box and Whisker plot and interpret it. Support your analysis with the arithmetic mean and coefficient of variation of the data.
0.75 0.90 0.95 0.975 0.99 0.995 Upper-Tail Areas Degrees of Freedom 0.25 0.10 0.05 0.025 0.01 0.005 1 1.0000 3.0777 6.3138 12.7062 31.8207 63.6574 2 0.8165 1.8856 2.9200 4.3027 6.9646 9.9248 3 0.7649 1.6377 2.3534 3.1824 4.5407 5.8409 4 0.7407 1.5332 2.1318 2.7764 3.7469 4.6041 5 0.7267 1.4759 2.0150 2.5706 3.3649 4.0322 6 0.7176 1.4398 1.9432 2.4469 3.1427 3.7074 7 0.7111 1.4149 1.8946 2.3646 2.9980 3.4995 8 0.7064 1.3968 1.8595 2.3060 2.8965 3.3554 9 0.7027 1.3830 1.8331 2.2622 2.8214 3.2498 10 0.6998 1.3722 1.8125 2.2281 2.7638 3.1693 11 0.6974 1.3634 1.7959 2.2010 2.7181 3.1058 12 0.6955 1.3562 1.7823 2.1788 2.6810 3.0545 13 0.6938 1.3502 1.7709 2.1604 2.6503 3.0123 14 0.6924 1.3450 1.7613 2.1448 2.6245 2.9768 15 0.6912 1.3406 1.7531 2.1315 2.6025 2.9467 16 0.6901 1.3368 1.7459 2.1199 2.5835 2.9208 17 0.6892 1.3334 1.7396 2.1098 2.5669 2.8982 18 0.6884 1.3304 1.7341 2.1009 2.5524 2.8784 19 0.6876 1.3277 1.7291 2.0930 2.5395 2.8609 20 0.6870 1.3253 1.7247 2.0860 2.5280 2.8453…
Any quantity that is computed from a sample is called
Twelve samples, each containing five parts, were taken from a process that produces steel rods at Emmanual Kodzi's factory. The length of each rod in the samples was determined. The results were tabulated and sample means and ranges were computed. The results were: Sample 1 2 3 4 5 6 Sample Mean (in.) 8.900 8.902 8.889 8.908 8.899 8.897 Range (in.) Sample Sample Mean (in.) Range (in.) 7 8.903 8 8.907 9 8.895 10 8.903 11 8.901 12 8.906 For the given data, the x = 8.9008 inches (round your response to four decimal places). Based on the sampling done, the control limits for 3-sigma x chart are: Upper Control Limit (UCL) = inches (round your response to four decimal places). 0.033 0.041 0.034 0.051 0.031 0.036 0.041 0.034 0.027 0.029 0.039 0.047
The average licensed driver travels 1,028 miles per month in his or her vehicle. Assume the population standard deviation is 345 miles per month. Determine the interval that will contain 94% of the sample means for the sample sizes in parts a through c. a.30drivers b.50 drivers c.70 drivers