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In the discipline of statistics, the histogram is one of the most popular and significant graphical…

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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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A social researcher wishes to know if there is a relationship between gender and perspective on the death penalty. Data has been collected on 228 persons and the results are displayed in the table below. Is there evidence of a relationship between gender and perspective on the death penalty? Gender Favor Oppose Total Male 70 42 112 Female 68 48 116 Total 138 90 228 Copy Data Step 4 of 8 : Find the value of the test statistic. Round your answer to three decimal places.
how do i find the percentile rank of the measurement 57
Part 3: Hypothesis tests for two proportions, Chi square tests and Correlation Check to see if the number of sales for any age group is significantly different than the rest. You believe that each age group has the same percent of sales and that no sales are made to people over 59 years old. Complete the table below. Age group Claimed Percentages (answer) Actual number of sales 0 to 19 1/5 = 0.20 22 20 to 29 1/5 = 0.20 34 30 to 39 1/5 = 0.20 30 40 to 49 1/5 = 0.20 26 50 to 59 1/5 = 0.20 20 Run the appropriate hypothesis test to determine if the actual data is significantly different than a flat distribution of equal sales for each age group at the 0.05 significance level. Copy and paste information from the ESP Excel sheet, including the p-value and summarize your results.
What is the actual value of the median
Number of songs on students' ipods 20 15 10 O to 24 25 to 50 to 75 to 49 74 99 If a new student was added to the data who had 98 songs on their ipod, how would the histogram change? Explain. Number of students
230 people are asked how many siblings they have? # of Siblings Frequency Relative Frequency Cumulative Frequency 0. 0.2087 48 1 49 0.213 97 40 0.1739 137 49 4 44 0.1913 230 a. Complete the table (Use 4 decimal places when applicable) b. What percent of the people have exactly two siblings? %
3..
Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…
Based first from the first pic. Please show the correct answer
210 people are asked how many siblings they have? # of Siblings Frequency Relative Frequency Cumulative Frequency 0 0.1714 40 1 2 39 3 52 4 43 a. Complete the table (Use 4 decimal places when applicable) b. What percent of the people have exactly two siblings? 36 0.1857 0.2476 0.2048 115 167 210
The first picture is the question and the second is the ones that I need help with. Thanks
Please see the picture below. I only am given one attempt at this problem.

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16% 12% 8% 4% 2 6 LI 1 0 10 14 Histogram of Final Exam Scores 100 20 30 Scores About what percent of the class scored less than a 20? 40 50 60 70 80 90 100 по