3. Answer the following concept questions in 1-3 sentences each. (a) Consider the sampling distribution for X. Suppose X, ~ N(75, 25). Do we need the Central Limit Theorem to find P(X < 72) if our sample size is 9? Why or why not. (b) Consider the sampling distribution for X when we have a "large" sample size (n > 30). When we calculate the z-score, why do we divide by o/n instead of o? (c) Consider the Central Limit Theorem for the difference of means. For our standard deviation, we use SD (X1 - X2) : n2

Q: 20. 2c and 2b A) 2c>2b 21. b+c 2 and b+c. A) b+c> b+c 2 22. b+c and b-c A) b+c>b-c B) 2b>2c B) b+c>…

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Q: Gun: KEE(F, EB= FD Poove: AEBCEAFDC

A:

Q: 2) 3x+3 10 9,

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Q: 1) 20 more than a number, n 2) A number, t, minus 10

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Q: respectively, then prow B.

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A: Solution

Q: 12) 100 87 110/2

A: Z=70° y=103°

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A:

Q: The following is a sample of sanitation scores for 20 cruise s 91 91 81 87 93 92 89 92 86 98 C a.…

A: We have given that,  We have from the above,  x̄ = 89.15  and  s= 4.34

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Q: -2 b) 273 a) 8

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Q: Exercise: Given C = (a, e, i, o, u} and D = {b, c, e, f, h, i, m}, find a.CUD b.CND

A: Given,  C={a,e,i,o,u}D={b,c,e,f,h,i,m}

Q: 3 B 4 (A) A=7, B = 10, C = 12, D = 2 A=7, B = 10, C = 12, D = 4 8 10 B D

A: We need to find the logic to find the values

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A:

Q: - 1 a. 6. b. a (a-3)2 С. -3 a d. -3 a e. a 2 a 5,

A: See the attachment

Q: 7.) -3j6 - 12j

A: Given the expression −3j6⋅12j

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A:

Q: The symbol U represents which of the following A union, "and" B) union, "or" c) intersection, "and"…

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Q: 37)120 42)284

A: To find the quotient for the given examples.

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Q: Find these values. a) [1.1) c) L-0.1) e) [2.99] 即+」 b) [1.11 d) -0.11 f) (-2.991 h) +1+1

A:

Q: 6) Integorute each. d2. 6)

A: (a) Given integration is : ∫11-4x2dx Let I=∫11-4x2dx I=∫11-4x2dx=∫11-2x2dx Put u=2x du=2dxdu2=dx

Q: Simplify the expression. glog8 (6x) 49) 8 A) 8 B) 86 C) 1 D) 6x a) b)

A: This question is based on Logarithmic properties.