Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t/2, (b) find the critical value za/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n= 185, x = 33.9 hg, s= 7.2 hg. The confidence level is 95%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. ta/2= (Round to two decimal places as needed.) O B. Za/2= (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies.

Q: A rancher has 1500 feet of fence and would like to enclose a rectangular area that borders a river…

A: Given total length of the fencing = 1500 ft

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A:

Q: If a rock falls from a height of 3535 meters on​ Earth, the height H​ (in meters) after x seconds is…

A: The problem is asking us to find the height of the rock after x seconds. The height is given by the…

Q: 3 V1+x3 -dx x-2

A: Given:      ∫1+x33x-2dx      =∫x2 x3+13dx substitute u=x3+1                 dudx=3x2→dx=13x2du

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A:

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Q: evaluate z=4^5+3i

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Q: simplify (-32)^3/5 and show work

A: We have to simplify the expression -3235 .

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Q: Simplify the expression using appropriate identities (2x-y)(2x+y)(4x^2+y^2)

A: Given expression, 2x-y2x+y4x2+y2

Q: Divide the following. Write the result as an expression that is equivalent to x^3-3x^2+4x+1/x^2+2

A:

Q: Which of the following is equivalent to (-1/2t)^2 Option 1: -1/2t^2 Option 2: -1/4t^2 Option 3:…

A: Given expression: -12t2

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A: The given inequality is,x+10<3 or 2x≥10

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Power Operation

Power operation is topic of algebra in Math. It is use to represent repeated multiplication. Very big number and very small number can be easily express using power operation. Power operation is useful in many fields. In space engineering, it helps in representing the distance or size of particular heavenly body. In medical field, it is used to represent very small size. In medical field it helps to mention size of bacteria or virus. 

Exponents

The exponent or power or index of a variable/number is the number of times that variable/number is multiplied by itself.