A sample of weights, in pounds, from NFL (National Football League) players was taken.245 255240 265 240 245 233251 239 256250 250 259 255248 242 249 260 244 230 243232 232 245 235 259249232tPart 1 of 3Construct a histogram and normal probability plot of the NFL weights. (Do not submit.) Based on the graphs, is an attempt to transform the data needed to utilize statistical tests that require anapproximate normal distribution? Why?

Data analysis Note that I used R software for my calculations.

Answered: Part 1 of 3 Construct a histogram and…

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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Do men score higher on average compared to women on their statistics finals? Final exam scores of twelve randomly selected male statistics students and ten randomly selected female statistics students are shown below. Male: 65 94 63 85 84 72 79 80 95 79 75 84 Female: 54 60 81 72 65 66 61 77 64 77 Assume both follow a Normal distribution. What can be concluded at the the a= 0.01 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer Select an answer Select an answer (please enter a decimal) H₁: Select an answer Select an answer Select an answer (Please enter a decimal) b. The test statistic ? (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ? a e. Based on this, we should Select an answer the null hypothesis. f. Thus, the final conclusion is that ... The results are statistically insignificant at a =…
Do men score the same on average compared to women on their statistics finals? Final exam scores of eleven randomly selected male statistics students and thirteen randomly selected female statistics students are shown below. Male: 70 81 94 62 73 84 87 57 92 76 75 Female: 86 48 66 80 46 74 66 67 66 76 82 46 67 Assume both follow a Normal distribution. What can be concluded at the the a = 0.01 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer v Select an answer v (please enter a decimal) H1: Select an answer v Select an answer v Select an answer v (Please enter a decimal) b. The test statistic ? v (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ? v a e. Based on this, we should Select an answer v the null hypothesis. f. Thus, the final conclusion is that ... O The results are…
Maxwell’s hot chocolate is concerned about the effect of the year-long coffee advertising campaign on the chocolate sales. The weekly hot chocolate sales from 15 locations (in this year) is collected and summarized in the following table. Descriptive Statistics N Sum Range Minimum Maximum Mean Std. Deviation Variance Sales 15 --- --- 20 197 24.80 3.53 12.46a) Calculate the missing values in the table (Sum and Range)b) The average sales was $26.6 last year and the manager of the firm claim that there is a decrease in the sales this year. Does the data provide sufficient evidence to support the claim of the manager at 1% significance level? Show your calculations in detail and interpret the result.
Part I: Calculating Z Scores and Using the Standard Normal Table Imagine that you were hired as a consultant for Arizona State University. ASU has provided you with data from the National Center for Education Statistics for four-year universities for the 2016-2017 academic year. Summary statistics for four indicators are provided below. Assume each indicator is normally distributed. Answer all of the questions for each of the four indicators. Show your work and make sure your final answers are easy to identify. You can round your answers to two digits after the decimal point. Indicator 1: SAT Math score for students admitted in 2016 who scored in the in the 75h percentile (variable name: SATmath75th). ASU West's score: 580 • University of Arizona's score: 790 Variable Obs Mean Std. Dev. Min Max SATmath75th 1,223 584.27 74.90 380.00 800.00 1. Identify the Z score that corresponds to ASU West's score Answer: 2. Identify the percentage of universities with scores below ASU West's score…
Answer it correctly please. Give proper reason. I
The normal distribution plays an important role in statistics. Write a briefdescription on each of the following aspects: i) the key features of a normaldistribution; ii) two variables which occur naturally as a normal distribution; iii) a variable where you would prefer to use the median as the measure of centraltendency.
Explain each of the following concepts and the relevance of each concept in hypothesis testing: normal distribution, point estimate, and parameter.
Do men score lower on average compared to women on their statistics finals? Final exam scores of twelve randomly selected male statistics students and twelve randomly selected female statistics students are shown below. Male: 89 94 88 64 57 58 62 83 82 88 57 78 Female: 81 80 65 66 97 92 70 94 82 90 65 93 Assume both follow a Normal distribution. What can be concluded at the the a = 0.10 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer Select an answer Select an answer v (please enter a decimal) H1: Select an answer v Select an answer v Select an answer ♥ (Please enter a decimal) b. The test statistic ? v = (please show your answer to 3 decimal places.) c. The p-value = d. The p-value is ? v a e. Based on this, we should Select an answer v the null hypothesis. f. Thus, the final conclusion is that ... (Please show your answer to 4 decimal places.) O The results are…
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Part 1 of 3 Construct a histogram and normal probability plot of the NFL weights. (Do not submit.) Based on the graphs, is an attempt to transform the data needed to utilize statistical tests that require an approximate normal distribution? Why?