You are hired to inspect a flow metering device. You want to test whether the mean flow rate of the device is different from 150 ml/hr at a significance level of 0.05. It is known that the flow rate follows a normal distribution with a standard deviation of 12 ml/hr. The sample mean of 30 measurements is 156 ml/hr. (Reminder: show your work/justification for all answers.) a. The value of the test statistic is Round to 2 decimal places. b. Is this a two-sided or one-sided test? Write "two" or "one". c. Should your reject the null hypothesis? . Write "reject" or "not reject".

You are hired to inspect a flow metering device. You want to test whether the mean flow rate of the device is different from 150 ml/hr at a significance level of 0.05. It is known that the flow rate follows a normal distribution with a standard deviation of 12 ml/hr. The sample mean of 30 measurements is 156 ml/hr. (Reminder: show your work/justification for all answers.) a. The value of the test statistic is Round to 2 decimal places. b. Is this a two-sided or one-sided test? Write "two" or "one". c. Should your reject the null hypothesis? . Write "reject" or "not reject".

Name: You are hired to inspect a flow metering device. You want to test whe
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Description: You are hired to inspect a flow metering device. You want to test whether the meanflow rate of the device is different from 150 ml/hr at a significance level of 0.05. It isknown that the flow rate follows a normal distribution with a standard deviat

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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The blood pressure in millimeters was measured for a large sample of people. The average pressure is 140 mm, and the SD of the measurements is 20 mm. The histogram looks reasonably like a normal curv Use the normal curve to estimate the following percentages. Choose the answer that is closest to being correct. A 19.1% B 30.9% C 38.2% D 69.1% E 68.27% A The percentage of people with blood pressure between 130 and 150 mm. B The percentage of people with blood pressure between 140 and 150 mm. D The percentage of people with blood pressure over 150 mm.
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A set of data had a sample mean of 42.0 and a sample standard deviation of 11.0. What is the coefficient of variation (CV), expressed as a percentage, for this set of data? Round your answer to two decimal places. Do not include the percent sign. Your Answer:
For this data, a. what is SS total ? b. what are the df values for the repeated-measures F-ratio ? c. what is SS between subjects ?
Answer the question. Show all the steps, not only the final answer. if possible, sketch a little diagram to clearly see the area under the normal curve. 1. A major research study concluded that the mean number of times that adolescents had engaged in vandalism during the previous 12 months was 3.5 times. We believe the true population mean to be less than this. After collecting our own sample of 36 adolescents, we find that the mean number of times they have vandalized property during a l-year period wasX̅ = 2.9 with a standard deviation equal to .7. Perform all ofthe procedures necessary for conducting a hypothesis test based on our assumption. What do you conclude? Set your alpha level at .05.
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