Question Help A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 4 points with 99% confidence assuming s= 13.9 based on earlier studies? Suppose the doctor would be content with 90% confidence. How does the decrease in confidence affect the sample size required? E Click the icon to view a partial table of critical values A 99% confidence level requires subjects. (Round up to the nearest subject) A 90% confidence level requires subjects. (Round up to the nearest subject) How does the decrease in confidence affect the sample size required? O A. Decreasing the confidence level decreases the sample size needed. O B. Decreasing the confidence level increases the sample size needed. O C. The sample size is the same for all levels of confidence.

Q: (-14) + (–7)

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Q: (42x² – 33) ÷ (7.x + 7)

A: We have to solve                           42x2-33÷7x+7

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A: We have to apply the inverse Laplace transform of the second shifting theorem to find the solution…

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A: The given equation is: y=x+4

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Q: A-1 does not exist.

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Q: xp xペ-4xt13

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Q: こ (0) of

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Q: 9 – 4x > –3

A: The given inequality is 9-4x>-3

Q: If A: find A 2. 3 3. and Show Shat A-3

A: A=1213 Now determinant value is, A=13-12=1 Adjoint of matrix A is, adjA=3-2-11 Now,…

Q: х3 — 2х dx х — 1 -3 10. 2

A: Given: I=∫23x3-2xx-1dx For evaluating given integral, we substitute x-1=t…

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A: The expression is given as 1+–3m+–9m+4+5+–10m. Simplifying the given expression. 1+–3m+–9m+4+5+–10m…

Q: 18) 2x y

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Q: Find A.

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Q: Evaluate. (3- 5)² + 4(1 – 5)

A: Given, (3-5)2 + 4(1-5)

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A: Solve the given expression  given expression is 2(3+d-1)

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A: 2070 = (16a+10)15 And (16e+11)17 =3723 To find  the values of a and e

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A: Given that: ∫0π(4sinθ-8cosθ)dθ

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Q: –4(–6m – 7).

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A: Here we have to divide two polynomials as shown.

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.