Problem 2A random sample of 36 skeletal remains from females was taken from data stored in theForensic Anthropology Data Bank (FDB) at the University of Tennessee. The femur lengths(right leg) in millimeters are recorded below.432432 435 460 432 440 448 449 434 443525 451 448 443 450 467 436 423 475 435433 438 453 438 435 413 439 442 507 424468 419 434 483 448 514a. Determine the sample mean and standard deviation.Since the sample size is large, we can use the sample standard s in place of o in calculationsof confidence intervals.b. Before doing any calculations, think about a 90%, 95% and 99% confidence for u, the meanfemur bone length for women. Which of these intervals would be the widest? Which would bethe narrowest? Explain how you know without calculating the confidence intervals.c. Calculate 90%, 95%, and 99% confidence intervals for u, the mean femur bone length foradult females. Do your results confirm your answer to (b)?

Answered: Image /qna-images/answer/08235880-90ab-4da3-8fe7-7c9d18e9b095.jpg

Answered: Problem 2 A random sample of 36…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Problem 3 a) Provide 3 interpretations on the following graphic (boxplot). Boxplot of x 6000 5000 Q1 = 646.75 Median = 1310 4000 Q3 = 2623.25 IQRange = 1976.5 Whiskers to: 450, 3469 N = 28 X 3000 2000 1000
a. find hypothesis b. check all the assumptions and conditions c. create histograms for each set of data
The following data represent tree trunk circumferences (in mm) foa a random sample of 60 6-year old Mahogany trees in a man-made forest in Bohol. 108 99 106 102 115 120 120 117 122 142 106 111 119 109 125 108 116 105 117 123 103 114 101 99 112 120 108 91 115 109 114 105 99 122 106 113 114 75 96 124 91 102 108 110 83 90 69 117 84 142 122 113 105 112 117 122 129 100 138 117 (a) Make a frequency table with seven classes showing class limits, class boundaries, midpoints, frquencies, and relative frequencies. (b) Draw a histogram (c) Draw an ogive
An ambulance service responds to emergency calls for two counties in Virginia. One county is an urban county and the other is a rural county. A sample of 470 ambulance calls over the past two years showed the county and the day of the week for each emergency calI. Data are as follows. Do not round intermediate calculations. Day of Week County Sun Mon Tue Wed Thu Fri Sat Urban 59 49 50 57 62 75 41 Rural 5 12 15 10 11 11 13 Test for independence of the county and the day of the week. Using a = 0.05 level of significance, what is the p-value? Compute the value of the x test statistic (to 3 decimals). Do not round you intermediate calculation. Use Table 3 of Appendix B to find the p-value. The p-value is - Select your answer - What is your conclusion? V - Select your answer - The assumption of independence cannot be rejected Reject the assumption of independence
As practiced by many in buying skirts or pants, they use the neckline to check if the waistline of the skirts or pants fits them. We would like to study this claim by using a random sample of neckline and waistline of 15 people. The data collected are summarized as follows: Subject 1 2 3 4 5 6 7 8 9 10 11 12 14 15 13 Neckline 35 34 38 45 38 33 38 42 44 33 35 31 33 35 30 (cm) Waistline(cm) 83 97 100 86 82 77 82 91 62 93 57 67 93 57 3-4. The regression equation is: Waistline' = - 3.9964 2.30321 neckline 5. Using the regression equation/model for waistline in Number 3-4, estimate the waistline if the neckline of a person is 37 cm. Round off final answer to two decimal places. 6-8. Solve for the coefficient of determination, r2 (Express the answer in percentage form, r2 x 100%; Round off final answers to two decimal places): E(y/ – 9)² = E(y – 9)² = 9. Solve for the coefficient of nondetermination (Express the answer in percentage form; Round off final answer to two decimal places):
A state fisheries commission wants to estimate the number of bass caught in a given lake during a season in order to restock the lake with the appropriate number of young fish. The commission could get a fairly accurate assessment of the seasonal catch by extensive “netting sweeps" of the lake before and after a season, but this technique is much too expensive to be done routinely. Therefore, the commission samples a number of lakes and record the seasonal catch (thousands of bass per square mile of lake area) and size of lake (square miles). A simple linear regression was performed and the following R output obtained. Estimate Std. Error t value Pr(>|t|) (Intercept) 2.5463 0.4427 5.7513 0.0000 size 0.0667 0.3672 0.1818 0.8578 If a scatterplot showed a non-linear relationship between the response and explanatory variables, what should be done? O Nothing. Continue the analysis as is. Stop the analysis. Perform a natural log transformation on the response variable first. O Perform a…
Based on the definition of exploratory data analysis, which of the following is not a part of EDA? a) Summarizing data b) Anomaly Detection c) Statistical Analysis d) Hyperparameter Tuning
15. Diameter of Douglas Fir Trees The diameter of the Douglas fir tree is measured at a height of 1.37 meters. The S following data represent the diameter in centimeters of a random sample of 12 Douglas firs in the western Washington Cascades. 156 162 147 173 147 190 130 101 159 113 181 109 Source: L. Winter. "Live Tree and Tree-Ring Records to Reconstruct the Structural Development of an Old-Growth Douglas Fir/Western Hemlock Stand in the Western Washington Cascades." Corvallis, OR: Forest Science Data Bank, 2005. (a) Obtain a point estimate for the mean and standard deviation diameter of a Douglas fir tree in the western Washington Cascades. (b) Because the sample size is small, we must verify that the data come from a population that is normally distributed and that the data do not contain any outliers. The figures show the normal probability plot and boxplot. The correlation between the tree diameters and expected z-scores is 0.982. Use Option 1 or Option 2 to determine if the…
Question # 5: Twenty-five army inductees in Ontario were given a blood test to determine their blood type. The data set is A B B AB O O O B AB B B B O A O A O O O AB AB A O B A Calculate the single-number estimate of the population proportion of the army inductees who got blood type O.
A sample was taken of the verbal test scores of 20 applicants to graduate school at a large midwestern university. Below are the scores. For convenience, the data are ordered. 280 310 340 350 380 400 420 420 420 430 510 510 520 520 600 610 670 720 750 770 (All answers should be exact calculations.)a) The median is .b) The first quartile is .c) The third quartile is .d) The IQR is e) The lower fence is .f) The upper fence is .
please interpret the data
Please strictly provide explanation for item 13 and 15

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