Problem 2A CUSUM chart is used to monitor a process variability. The process mean and standarddeviation are Ho = 10 and o = 2, respectively. If x6 = 4, S† = 2, and k = 5, what is thevalue of S?

For monitoring process variability, a CUSUM chart is used.The process mean, The standard deviation,…

Answered: Problem 2 A CUSUM chart is used to…

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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Question 11
Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 116 and 144? Question 22 options: 47.5% 13.5% 95% 81.5% 68% 34%
Problem 6 The compressive strength of concrete is being tested by a civil engineer. She tests 12 specimens and obtains the following data (in psi): 2213, 2256, 2247, 2203, 2225, 2304, 2289, 2287, 2312, 2252, 2274, 2295. Part a Assuming that the compressive strength is normally distributed, test the hypothesis that the mean strength is at least 2250 psi. Part b Refer to Problem 6. Now assume that the compressive strength is not normally distributed, and test the hypothesis that the median strength is at least 2250 psi. One way to do this is to notice that if the median is 2250 psi, then you can count how many of the samples have strengths above and below that value—i.e., the proportion of samples greater than 2250—compared to the proportion you would expect if the true median were indeed 2250 psi. If you view the data as being either above or below the median, you can calculate the related P-value. Refer to Problem 6. Are the P-values from (a) and (b) similar? If not, can you…
Problem 3) Lead concentrations in the eggshells of California condors have a mean of 1.8 and a standard deviation of 0.3 ppm. The contamination levels of eggshells are classified as "low" if the lead concentration is below 1.0 ppm, “moderate" if the lead concentration falls between 1.0 ppm and 2.4 ppm, and “high" the lead concentration is above 2.4. Assuming that the lead concentrations of eggshells follows a normal distribution, answer the following questions. (Hint* The categories of Low, Moderate, and High can help you identify the boundaries of each interval. For example, the boundaries of Low are – ∞ to 1.0.) ppm 13. What is the percentile of an eggshell with a lead concentration of 2.3 ppm? a. 81st b. 93rd с. 86th d. 95th 14. What lead concentration corresponds to the 79th percentile? a. 2.04 ppm b. 2.53 ppm с. 2.43 рpm d. 2.76 ppm
Question 33-
QUESTION 4 The average per capita spending on health care in the United States is $5274. If the standard deviation is $600 and the distribution of health care spending is approximately normal, find the limits of the middle 50% of individual health care expenditures. $4872 and $5676 $4296 and $5720 $2874 and $5766 $3952 and $5582 none of the choices QUESTION 5
Problem 5-4: From a large database, the Highway Patrol estimates that the average speed on a particular busy stretch of route 1-26 on a holiday weekend is 67 mph (miles per hour) with a standard deviation of 4 mph. The speed limit is 60 mph. The highway patrol will ticket anyone driving faster than 72 mph. What percentage of drivers can they expect to exceed 72 mph? Note: 0.62 kph = 1 mph.
QUESTION 24 Use the range rule of thumb to approximate the standard deviation. 22, 29, 21, 24, 27, 28, 25, 36 2.8 O3.75 O 4.2 1.65
12. How many miles will be traveled by at least 50% of the trucks? (Hint: Draw a graph.) lidadong eri bai zdl 8 bas 0T 13. How many miles will be traveled by at least 80% of the trucks? (Hint: Draw a graph.) rilidadonq od ba

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Problem 2 A CUSUM chart is used to monitor a process variability. The process mean and standard deviation are μ = 10 and σ = 2, respectively. If x6 = 4, S = 2, and k = 5, what is the value of St?