Suppose a random sample of size 49 is drawn from a population with a mean of 275. If 91% of the time the sample mean is less than 278, what is the population standard deviation? Appendix A Statistical Tables (Round your answer to 2 decimal places, e.g. 15.25.) O =

Q: 6+w=4

A: The give equation is 6 + w = 4To find the value of w.

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A: To find 50x3423

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A: Use the substitution and solve the integral easily.

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A:

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A: For similar triangle, ratio of corresponding sides are equal

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A: Applying  addition operation since terms with same variable  binomial addition

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A: The quadratic function has vertex (-2,3) and a point on graph 1, 12

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Q: A) Suppose F(xy)- М(х,у) і + N(x,y) j is a vector field on the xy plane such that F•dr = 0 Se I F•dr…

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Q: 12

A: Explanation and solutions is given below....

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A: For the solution follow the next step.

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A: We need to find the sum of 7 and 9

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A: Given,   A+12=13     We will solve it for the value of A

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A: Given the data as in the table below Baseline 0.04 0.02 0 0.02 0.34 0.24 After 20 days 0 0.37…

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A: B + A = 18

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A: 5×n = 25 To find value of n

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A: Given : 30  = 6+z

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A: NOTE: Refresh your page if you can't see any equations. .

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A: Simply expand the summation and add all values after calculation.

Q: Find n when a₁ = -6, d=6, and an = 18. n= 11

A: Given first term is a1= -6