Given that Z - N (0,1), find k if P(\Z| < k) = 0.8. %3D O 1.282 O -0.253 O 0.842 O -4.5

Q: An xbar chart is to be established based on x-doublebar=100 and sbar=8 with n=4. The control limits…

A: Given that, X-double bar=100 , s bar=8 n=4, α=0.0035 α2=0.00352=0.00175 z(α/2)=z(0.00175)=2.92…

Q: For a variable x that is normally distributed with ?=200, ?2=64. Find (i) P(x>210)  (ii)…

A: Given:

Q: an = n! with ratio test A) infinity O C) 1 O

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Q: (d) n= 5, p=0.45, X=0 P(X) = www. Part: 4 / 5 Part 5 of 5 (e) n = 3. p=0.48, X 1 P(X) =

A: We have given that,  X be the random variable from binomial distribution.  Then,  We will find the…

Q: Find [E(x-x)] from the following table: 3 4 5 P(x) 0.1 0.1 0.2 0.3 0.2 0.1

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Q: E (z + 5)" n=1

A: radius of convergence is range where series is convergent

Q: A CI is desired for the true average stray-load loss ? (watts) for a certain type of induction motor…

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Q: e value of e v2 is 3.844218759.

A: True

Q: In testing the hypotheses H​0: p​ = 0.65 vs Ha​: p​ =/= 0.65, the test statistic is calculated to be…

A: Given information- Test statistics is, Z = 2.07 Since it is two tailed z-test. Computation of…

Q: A population of N=6 has a EX^2 =54. What is the value of SS for this population

A: Ans:- Given, A population of N=6 has a EX^2 =54. What is the value of SS for this population

Q: Consider the value of t such that the area to the left of-l plus the area to the right of Ir equals…

A: We have to find t such the area to the left of -| t | plus area to the right of | t | equals 0.02…

Q: 2.8 2.9 3 3.1 3.2 h(q) 3578 4414 5446 6718 8288 Estimate h' (3) using the table above. h'(3) -

A: h(x)=c where c is constant Then h'(x) =0

Q: e) Find the mean median ed (6) X ~ Bi (np). If the mean is 102 cand o² = 0.12 Find the pr(x > 1)

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Q: 1. A T interval for the difference of 2 population means was obtained on the TI, as shown below.…

A: Given the T interval for the difference of 2 population means as -21.17, 81.168

Q: A one sample t-test is conducted with H a: H# 16. If t= 3.10 and df = 20, the p-value is O a. O b.…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: With Ha : p > 77% you obtain a test statistic of z = 1.821. Find the p-value accurate to 4 decimal…

A: It is given that, Ha : p &gt;77% i.e. Ha: p&gt;0.77 (Right tailed test or one-sided hypothesis) The…

Q: 1. Given X - N (H = a z-score of 1.4? (b) What is the z-score that corresponds to x =30? 50, o =…

A: given:  random variable x follow normal distribution with mean mu=50 and standard deviations=10  a):…

Q: A sample of n = 81 from a population of u = 80 and o = 18 has a mean M = 81. What is the z-score for…

A: Solution-: Given: n=81,μ=80,σ=18,M=18 We find the z-score for the sample means?

Q: with unknown mean n is v 9.9. What value of k is 12- k0.9

A: Let X be the random variable   x̅: Sample mean = 12 s: Sample standard deviation  = 9.9 n: Random…

Q: Quiz Find [E(x²-x)| from the following table: 2 0.2 3. 0.3 4 5 0.1 P(x) 0.1 0.1 0.2

A: Given that x 0 1 2 3 4 5 P(x) 0.1 0.1 0.2 0.3 0.2 0.1

Q: Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24…

A: Control limits for x-bar chart: UCL=x¯¯+3R¯LCL=x¯¯-3R¯CL=x¯¯ Consider, Hour x¯ R 1 3.35 0.76…

Q: 1f. It has been reported that the first week in May NC has an average daily temperature of 88…

A: Average daily temperature of first week in May is 88 degrees. The first week had recorded…

Q: A human resources director wants to determine if there is a dependence between day of the week and…

A:

Q: Let x1, X . ,~ Bin( n,p) and p = . Find 1) A constant c such that E[c p ( 1 – p) ]= p(1- p). 2) Find…

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Q: With Ha : H + 122 1.578. Find the p- you obtain a test statistic of z = value accurate to 4 decimal…

A: P(Z &lt; -1.578 ) = 0.0573   [using Excel function NORM.S.DIST(-1.578) or Normal table ]

Q: A population with a mean of u= 9 has EX = 54. How many scores are in the population? ON= 9 ON=7 N= 6…

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Q: e value of c such th Σ enc = 10 n = 0

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Q: The test statistic was found to be x there will be (r – 1)(c – 1) degrees of freedom where r is the…

A: Given, Hours of sleep Age group 39 or younger 40 or older total Fewer than 6 38 36 74 6 to…

Q: Name: 1. Consider the test of Họ: of = o3 against H;: of + 03. Estimate the p-value for the…

A: We have given that  1) f0=3 , n1=10 , n2=8

Q: 3) Consider the following survival model 1 =150e" (1+x)* , x20. Derive an expression for the mean of…

A: 3. Consider the following survival model lx=150 e3π1+x-8, x≥0 We need to derive an expression for…

Q: gth of the confidence interval by h prmation, it is impossible to determ erval by half.

A: Given : If the sample size is doubled from n=50 to  n=100, the length of the confidence interval is…

Q: EXY Index (i) 1 2 3 니 5 <c(x+y) 7 9 0 0 5 73u8 2 ㄱ x 10 ㅅ 니 L 도 (y+c)

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Q: Estimate a sample for a population of 5,000 inhabitants based on the following parameters: 1. Z^2…

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Q: Use a calculator to compute the values of 2 +(1/2!) + (1/3!) + g+ (1/n!)for n = 4, 6, 8, and 10.…

A: The factorial of a function is given by the product of all numbers preceding the number until it…

Q: With Ha : p ≠≠ 89% you obtain a test statistic of z=3.015z=3.015. Find the p-value accurate to 4…

A: Denote p as the true proportion. The null and alternative hypotheses are: H0: p = 0.89, vs. Ha: p ≠…

Q: f(b) -f(a) that satisfy the equation =f(c) in the conclusion of the Mean Val iunni b-a linterval.…

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Q: 4) Construct a Gregory- Newton interpolation formula from the following data: the interval of x is…

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Q: n USE SALT (a) P(0 sZS 2.81) .4975 (b) P(0 < Z< 2) .4773 (c) P(-2.70 sZ s 0) .4965 (d) P(-2.70 SZS…

A: We have to find probability from z table

Q: The critical value of Chi square from the table is 71.420; The values of "df" and "a" are. Select…

A: We have given that,  The critical value from Chi square table is 71.420 Then,  We will find the…

Q: Consider the model y=1+e where for X = {r1, ... , IN}, and for all i, E (e,|X) = c # Which of the…

A: From the given information, Here, the ols estimator is unbiased estimator. Hence, the option "the…

Q: The joint probablity function for X and Yis gven below. E(2X + 3Y) is __ 1_. 0.35 0.25 023 0.17…

A: We have given that the joint distribution function of X and Y in tabulation form.

Q: etermine P(x>3)

A: Let X and Y be two continuous random variable with joint pdf f(x,y). The marginal probability…

Q: Given a pdf that is N(7, 5 2) find P(|x-5|>

A: From the given information, The pdf is (7, 5.2) That is, μ=7 and σ=5.2

Q: For this problem, involving a weighted die. assume that all the odd numbers are equally likely to…

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Q: ou have been assigned to determine whether more people prefer Coke or Pepsi. Assume that roughly…

A: First we find the critical value of z at 5% level Using Excel function NORMSINV(0.95+(0.05/2)) =…

Q: With Ha : p &gt;&gt; 88%you obtain a test statistic of z=1.255z=1.255. Find the p-value accurate to…

A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…

Q: ngth of the ladder. Round your answer to th

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Q: An anthropologist wants to collect data to determine whether the two different cultural groups that…

A: 1. If we have population standard is known then we use Z-statistic 2. If we have population standard…

Q: X, = 3088 i, = 3214 5) Placebo group Zinc supplement group The above summarizes the birth weights in…

A: As due to the honor-code, we are authorized to answer only 3 subparts for each question and that you…

Q: Assume that X has an exponential distribution. If Var (4-4)=20. Then E(X) is 20 b.0 C. 5 d. 10 e.…

A: (9) given,X has an exponential distribution and Var4-x5=20