A selection process to be set in a position in GM company. Candidates are requested to complete an aptitude test. The results from the test are assumed to follow a normal distribution with standard deviation, equal to 1.2. A simple random sample of 16 results from the test has a sample mean of 4.2.

Q: 2 +,

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Q: -Sune +1

A: This question is based on solution of Trigonometric equation.

Q: can you also answer F

A: We need to determine which of the sales, 170CDs or 200CDs, yields a higher profit.

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Q: 4x - 5y = 3  3x - 4y = 6

A: Given that       4x - 5y = 3 -------------(1)        3x - 4y = 6 -------------(2)

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A: We have to find h

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A: Firstly, we subtract 3x from both  sides of equation.

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Q: Find

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A: To calculate the value of the given integral.

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A: Given4x+2y=8 and    --- Eq 16x-4y=5           --- Eq 2We solve for x and yFrom Eq 1:2y=8-4x…

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A: 9y-3=19-2y

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Q: 2. seot

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Q: 5x-7=4x-1

A: Given that, 5x-7=4x-1 We will solve it, for the value of x

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.