A study of the surface roughness of coated interior pipe used in oil fields resulted in the databelow (measurements in micrometers). Conduct a nonparametric test to determine whetherthe median surface roughness of coated interior pipe differs from 2 micrometers. Test with 95%confidence.1.72 2.50 2.162.572.641.262.132.051.061.192.24 2.312.131.272.031.511.092.411.401.95

Let x denote the surface measurements( in micrometers). The data on x is given as followsThe sample…

Answered: A study of the surface roughness of…

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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Find the mean and compare it with the median. Find thestandard deviation and compare it with the interquartile range. Data is: Release time [sec] of a relay1.3 1.2 1.4 1.5 1.3 1.3 1.4 1.1 1.5 1.41.6 1.3 1.5 1.1 1.4 1.2 1.3 1.5 1.4 1.4
Please choice the correct answer
Answer the blanks with ref highlighted marks. Use image two to determine the test procedure and p value
What is the test statistic P value
Please answer number 4 and 5.
Registered nurses earned an average annual salary of $69,110. For that same year, a survey was conducted of 41 California registered nurses to determine if the annual salary is higher than $69,110 for California nurses. The sample average was $71,121 with a sample standard deviation of $7,489. Conduct a hypothesis test. g. Use the previous information to sketch a picture of this situation. CLEARLY, label and scale the horizontal axis and shade the region(s) corresponding to the p-value. (note: feel free to replace with your own image by hand or another program) h. Indicate the correct decision (“reject” or “do not reject” the null hypothesis), the reason for it, and write an appropriate conclusion, using complete sentences. 1. Alpha: _______ 2. Decision: _______ 3. Reason for decision: _______ 4. Conclusion: _______ 5. Construct a 95% confidence interval for the true mean or proportion. Include a sketch of the graph of the situation. Label the point estimate and the lower and…
please answer the question in the photo. Thank you
Clear writing please
Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway per hour and 85 miles per hour. (Assume the data set has a bell-shaped distribution.) 70 miles per hour, with a standard deviation of 5 miles per hour. Estimate the percent of vehicles whese speeds are between 55 miles Approximately% of vehicles travel between 55 miles per hour and 85 miles per hour.
Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 68 miles per hour, with a standard deviation of 3 miles per hour. Estimate the percent of vehicles whose speeds are between 65 miles per hour and 71 miles per hour. (Assume the data set has a bell-shaped distribution.) Approximately nothing% of vehicles travel between 65 miles per hour and 71 miles per hour.
Assume the cholesterol levels of an adult can be described by a Normal model with a mean of 183 mg/dL and a standard deviation of 27. Complete parts a through e. b) What percent of adults do you expect to have cholesterol levels over 190 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 3 c) What percent of adults do you expect to have cholesterol levels between 150 and 160 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 4 d) Estimate the interquartile range of cholesterol levels. IQR=enter your response here mg/dL (Round to the nearest integer as needed.) Part 5 e) Above what value are the highest 15% of adults' cholesterol levels? enter your response here mg/dL (Round to the nearest integer as needed.)
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