Pereira Cell: (908)943-207811:38417. For each of the following samples, determine theinterval width that is most appropriate for a groupedfrequency distribution and identify the approximatenumber of intervals needed to cover therange ofscores.a. Sample scores range from X = 8 to X = 41.b. Sample scores range from X = 16 to X = 33.c. Sample scores range from X = 26 to X = 98.

Given that a. Sample scores range from X = 8 to X = 41 . b. Sample scores range from X = 16 to X…

Answered: 7. For each of the following samples,…

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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Please answer the question on the attachment.
I Draw all possible samples of size 3 without replacement from the population (93), (94), (95), (96), (97) and (98). Then find the following: 1. Mean from the sampling distribution of sample means. ii. Population mean. P3
Use the accompanying data set to complete the following actions. a. Find the quartiles b. Find the interquartile range. c. Identify any outliers 54 62 61 55 58 55 55 61 63 65 63 62 61 59 78 a. Find the quartiles. The first quartile, Q₁, is The second quartile, Q₂, is The third quartile, Q3, is (Type integers or decimals.) b. Find the interquartile range The interquartile range (IQR) is c. Identify any outliers Choose the correct answer below. (Type an integer or a decimal) OA. There exists at least one outlier in the data set at (Use a comma to separate answers as needed) OB. There are no outliers in the data set
Answer numbers 4 to 7
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer.At five weather stations on Trail Ridge Road in Rocky Mountain National Park, the peak wind gusts (in miles per hour) for January and April are recorded below. Weather Station 1 2 3 4 5 January 137 124 128 64 78 April 104 115 102 88 61 Does this information indicate that the peak wind gusts are higher in January than in April? Use ? = 0.01. (Let d = January − April.) (a) What is the level of significance? What is the value of the sample test statistic?
Use the accompanying data set to complete the following actions. a. Find the quartiles. b. Find the interquartile range. c. Identify any outliers. 42 50 37 44 41 38 39 48 44 38 35 55 44 36 15 51 38 49 29 29 a. Find the quartiles. The first quartile, Q1, is _____. The second quartile, Q2, is ____. The third quartile, Q3, is ____. (Type integers or decimals.) b. Find the interquartile range. The interquartile range (IQR) is _____. (Type an integer or a decimal.) c. Identify any outliers. Choose the correct choice below. A. There exists at least one outlier in the data set at____. (Use a comma to separate answers as needed.) B. There are no outliers in the data set.
The government is interested to estimate the proportion of families gathering in the weekends, in a city. The city is divided into three blocks. A stratified random sample of 60 households was selected proportionately from each block considering the blocks as strata. The summary data of the survey are presented in the following table. Stratu Ni m (i) X; Mean Si Pi 1 120 18 35.0 4.0 0.5 0.2 0.9 130 15 20.0 5.0 180 27 30.0 6.0 25 i) Estimate the proportion of family gathering in the weekend, and obtain a 95% confidence interval of your estimate. Interpret the results. ii) Find the appropriate sample size and its allocation for estimating the total family gathering, with a bound of 50 points on the error of estimation. Assume that the stratum standard deviations are o1=8, 02=12 and, o3=4. LO NO LO CO 23
B) For each sample, plot the data points on a scatter plot (by hand without drawing the line of best fit) and ensure to add the appropriate labels on the plot
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer.
Use the accompanying data set to complete the following actions. a. Find the quartiles. b. Find the interquartile range. c. Identify any outliers. 41 51 36 43 40 37 41 46 44 37 34 56 42 34 15 51 39 50 29 29 a. Find the quartiles. The first quartile, Upper Q1, is The second quartile, UpperQ2, is The third quartile, Upper Q3, is (Type integers or decimals.) b. Find the interquartile range. The interquartile range (IQR) is (Type an integer or a decimal.) c. Identify any outliers. Choose the correct choice below. A. There exists at least one outlier in the data set at nothing. (Use a comma to separate answers as needed.) B. There are no outliers in the data set.
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. At five weather stations on Trail Ridge Road in Rocky Mountain National Park, the peak wind gusts (in miles per hour) for January and April are recorded below. Weather Station January April USE SALT Does this information indicate that the peak wind gusts are higher in January than in April? Use α = 0.01. (Let d = January - April.) (a) What is the level of significance? 1 2 3 4 5 137 120 126 64 78 104 115 102 88 61 State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? Ho: My = 0₁ H₁: 0; two-tailed O Hoi Hd O1 H₁: M O Hot Hd = 0; H₁: O Hot Hd = 0; H₁² = 0; right-tailed 0; right-tailed (b) What sampling…
Use the accompanying data set to complete the following actions. a. Find the quartiles. b. Find the interquartile range. c. Identify any outliers. 58 57 56 59 55 61 65 58 61 62 56 54 61 57 72 The second quartile, Q2, is 58 The third quartile, Q3, is 61 (Type integers or decimals.) b. Find the interquartile range. The interquartile range (IQR) is 5. (Type an integer or a decimal.) c. Identify any outliers. Choose the correct answer below. A. There exists at least one outlier in the data set at (Use a comma to separate answers as needed.) B. There are no outliers in the data set.

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