3. An assesses depreciated the machinery of his factory by 10% each in the first two years and by 40%in the third year and thereby claimed 21% average depreciation relief from taxation department, butthe I.T.O. objected and allowed only 20%. Show which of the two is right.4. The mean weight of 150 students in a certain class is 60 kilograms. The mean weight of boys in theclass is 70 kilogram and that of the girls is 55 kilograms. Find the number of boys and number of girlsin the class.

4. Total number of students = 150 Mean weight = 60 kg Total weight = 150×60 = 9000 kg Let the number…

Answered: 1. The mean weight of 150 students in a…

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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Customers arrive at a rate of 40 per hour. You can process 50 customers per hour. a. What percentage of the time are you busy? b. What is the average number of customers in the system? c. What is the average time that a customer spends in the system (in minutes)?
A sample of 1000 observations taken from population-1 gave x, =290 . Another sample of size 1200 taken from population-2 yielded x,=396. Find the sample pooled proportion. A. 0.6882 B. 0.2146 C. 0.3118 D. 0.0957
6. Setup: JP was curious about the sodium content of organic cornflakes. To investigate this, twenty 300-gram boxes of organic cornflakes were obtained and the sodium content was measured. The data (in milligrams) are as follows: 131.1, 130.7, 130.9, 129.5, 129.6, 128.8, 130.7, 128.3, 128.2, 129.7, 130.1, 129.3, 128.7, 129.0, 129.4, 130.4, 129.5, 130.1, 129.8, 130.0 Task: Perform a hypothesis test using R to determine if you can support a claim that the mean sodium content of this brand of cornflakes differs from 130 milligrams? Use a = 0.08 to make your decision. R Output: Upon running your analysis in R, you obtain the following results: One Sample t-test data: corn = 0.1121 t = -1.6659, df = alternative hypothesis: true mean is not equal to 130 19, р-value 92 percent confidence interval: 129.3458 130.0342 sample estimates: mean of x 129.69 Questions: (a) State the hypotheses used in performing this test. (b) Using the output above, state the decision (Reject or Not Reject Ho) of the…
What is the second term of the proportion a/b =x/y
2. V = % Bh (B = ?, V = 189, h 9)
A sample of 10 male students was taken from the population of SHS male students in JRU. The heights (in inches) of those 10 students are as follows: 60, 72, 70, 68, 70, 62, 66, 64, 66, 56. What is the point estimate for the average height of all SHS male students in JRU?

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1. The mean weight of 150 students in a certain class is 60 kilograms. The mean weight of boys in the class is 70 kilogram and that of the girls is 55 kilograms. Find the number of boys and number of girls in the class.