Answered: Given the mean of a certain data set as…

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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You are given the following set of data. Its mean is 327. 255, 295, 345, 365, 375 If 25 is subtracted from each value, what will be the new mean? A. 270 O B. 327 OC. 315 O D. 302
What is the relationship between the average income and the level of education in a given population, and how does this relationship vary across different regions and demographic groups?
What proportion of the general population has an IQ of 70 or less?
Illustration 27. If on an average, 6 ships out of 10 arrive safely, find the Mean and the S.D. of the number of ships arriving safely out of a total of 1000 ships.
suppose the five number summary for the normal annual precipitation (in inches) for 12 different U.S. cities is the following: 5.1, 11.5, 16, 22.1, 51.7 A. The IQR is 10.6 This means that the difference between the largest an smallest amount of rainfall is 10.6 inches B. The IQR is 10.6 This means that the range of the middle 50% of rainfall values is 10.6 inches. C. The IQR is 46.6 This means that the difference between the largest and smallest amount of rainfall is 46.6 D. The IQR is 46.6 This means that the range of the middle 50% of rainfall is 46.6 inches.
answer this with solution: The mean monthly salary of 26 male employees is 35,500 while that of 18 female employees is 44,100. Find the mean salary of all the respondents.
The blue catfish (Ictalurus Furcatus) is the largest species of North American catfish. The current world record stands at 143 pounds, which was caught in the John H. Kerr Reservoir (Bugg's Island Lake) located in Virginia. According to American Expedition, the average weight of a blue catfish is between 20 to 40 pounds. Given that the largest blue catfish ever caught was at the John H. Kerr Reservoir, you believe that the mean weight of the fish in this reservoir is greater than 40 pounds. Use the data below, which represents the summary statistics for 42 blue catfish caught at this reservoir, and a 0.05 significance level to test the claim that the mean weight of the fish in the John H. Kerr Reservoir is greater than 40 pounds. n=42; ¯x=40.63 pounds; s=3.49 pounds a) Identify the null and alternative hypotheses?H0: H1: c) Identify the appropriate significance level.d) Calculate your test statistic. Write the result below, and be sure to round your final answer to two…
Q5. Briefly explain four factors often used to subdivide life in mortality statistics.
During one shift, the express lane clerk recorded how many times customers violated the "10 items or less" rule for his lane. In particular, he recorded how many items over the limit each violator placed on the conveyor belt. This data is summarized in the histogram below. NOTE: The last class actually represents "7 or more items," not just 7 items. What is the frequency of times the limit was exceeded by at most 5 items?Answer: times
If 99 people had a mean income of $12,500, how much is the mean income increased by the addition of a single income of $240,000? The mean income increases by $
If 10 men in a company have an average annual salary of GH¢360,000 and 23 women have an average annual salary of GH¢285,000, find the mean salary of all 33 employees
The blue catfish (Ictalurus Furcatus) is the largest species of North American catfish. The current world record stands at 143 pounds, which was caught in the John H. Kerr Reservoir (Bugg's Island Lake) located in Virginia. According to American Expedition, the average weight of a blue catfish is between 20 to 40 pounds. Given that the largest blue catfish ever caught was at the John H. Kerr Reservoir, you believe that the mean weight of the fish in this reservoir is greater than 40 pounds. Use the data below, which represents the summary statistics for 50 blue catfish caught at this reservoir, and a 0.05 significance level to test the claim that the mean weight of the fish in the John H. Kerr Reservoir is greater than 40 pounds. n=50 ; ¯x=40.49 pounds; s=3.49 pounds a) Identify the null and alternative hypotheses? H0: H1: b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailed c) Identify the appropriate significance…

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Given the mean of a certain data set as 115, what will be its new mean if all the data points were increased by 5?