A nurse at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select if she desires to be 99% confident that the true mean is within 4 ounces of the sample The population standard deviation of the birth weights is known to be 7 ounces. OA. 5 О в. 4 OC. 21 OD. 20

Q: 24 30

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A: we use Trigonometry table to find out values of y = sin(2x)

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Q: 6)270

A: Given data:   The given expression is 270/6.     The number 270 can be written as, 270=3×90=3×2×45

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Q: only

A: Solution of the problem as follows

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A: We have to expand and simplify the following expression: . We will apply the binomial theorem to…

Q: 3) 24 12

A: We can find the value of x as below

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Q: {A €R?x2 | tr(A) = 0} | tr(A) — 0}

A: Here we take a general matrix of the given set then find the basis.

Q: 22+22+88/8=

A: Solution is given below:

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A: Quotient is 22 Remainder is 49

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A: We will evaluate the required value.

Q: 7

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Q: (402-25)

A: Given: I=4θ2-25dθ We know that ∫x2-a2dx=x2x2-a2-a22logx+x2-a2+c…

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A: the given expression is: we have to find the value of the given expression.

Q: Xx well l defned

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Q: FIND n +n?

A: Check convergence of ∑n=1∞ 2n+n2:Apply the constant multiplication rule:  ∑c·an=c·∑an=2·∑n=1∞…

Q: —5л 6.

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Q: A is a 4x3 matrix, what is the largest possible dimension of the row space of A? If A is a 3x4…

A: If A is a 4×3 matrix, then we need to find the largest possible dimension of the row space of A.…