Calculate n Sn = ? = 12 + 2² + 3² + · . . +n² %3D i=1

Q: Compute Pearson's r with the definitional formula, what would be the product of the z-scores of x…

A: Given: Participant stress (x) exam scores (y) 1 9 2 2 4 2 3 4 4 4 6 4 5 3 8

Q: With Ha : µ > 139 you obtain a test statistic of z = 1.494. Find the p- value accurate to 4 decimal…

A: Given, Test statistics z=1.494

Q: A research center claims that 30% of adults in a certain country would travel into space on a…

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Q: A medical researcher says that less than 72% of adults in a certain country think that healthy…

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Q: Find y(0) and y(inf) for the following  Y(s) = (s+1)/(s+2)

A: First, we need to find the inverse Laplace transformation.

Q: 1. Determine L{t*}. n! Ans. s*+1

A: We find the L{tn} using definition of Laplace Transform. We know that,

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

A: Given The given table is  Apply formula Ex=∑xxfxEx2=∑xx2fx

Q: d) Show that an alternate formula for a z-interval of the population mean is: E(x – 1)² n·x2

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Q: feels that the commute in his city is less and wants to publicize this. He randomly selects 25…

A: The hypotheses are given as follows: Null hypothesis: µ=25.4. Alternative hypothesis: µ<25.4.…

Q: 9Tt Compute the following using a calculator: cot( ). Round your answer to two decimal places. 10

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Q: Question 2: A magazine article reported that 11% of adults buy takeout food every day. A fast-food…

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Q: Suppose P(E1/E2)=0.46, P(E2/E1)=0.92, and P(E1)×P(E2)=0.24. Determine P(E2), giving your answer…

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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: What is the analytical value of S (0.75) given (x)--01x-0. 15x-0.5x -0. 25x +1. 27 -1.0678 b.…

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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 >77% i.e. Ha: p>0.77 (Right tailed test or one-sided hypothesis) The…

Q: 4 Estimate the value of > 3 to within 0.057 of its exact value. - n =1 n 4 (Round to three decimal…

A: Solution :

Q: 2. A new insecticide laboratory test, the immediately after contact. Is this sufficient evidence to…

A: 2.) The following information has been given: n=400x=384

Q: Suppose we find enough evidence against the H0 below. Write the appropriate step C. N. H0: μ ≤ 8…

A: Suppose we find enough evidence against the H0below. Write the appropriate step C.N. H0: μ ≤ 8A. Ha:…

Q: b) S. 1 /2n+1 n=1 In+1 c) S̟ =E: In° +1 n=1

A: 7) a) The given series to test is S∞=∑n=1∞e-nn. We can use the integral test for checking the…

Q: The results of a mathematics exam at JUST university for two classes are as follows: Class 1: (n=32,…

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Q: The table gives the population of North Dakota, as of July 1 of each year, as estimated by the US…

A: Given the table of the population of North Dakota, as of July 1 of each year .Here Let t=0…

Q: 4 to within 0.057 of its exact value. 3 Estimate the value of 2 - n = 1 n 4 Σ a 4.711 (Round to…

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Q: (b) Guess the value of x^e-X dx when n is an arbitrary positive integer.

A: ∫xne-xdxlet u = xn+1→dudx = (n+1)xndx = 1(n+1)xndu ; x = u1n+1∫xne-xdx = 1n+1∫e-u1n+1du⇒∫e-u1n+1=…

Q: The population of two different species are given by P1 P1 = In(t + 3) + 7* [: , where t is measured…

A: Given data - The population of two different species p1 and p2 are- P1 = ln(t+3)+7 P2 = ln(t+9)+1 We…

Q: If E(0) = 0 then is said to be a(n)

A: if Eθ^=θ then θ^ is said to be unbiased estimate for θ.

Q: Use Gauss's forward formula to find the value of y when x = 3-75, given the following table 2.5 3.0…

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Q: Using the data attached, compute the following  1.  x-bar= 2. Sx= 3. n=

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Q: Describe the histogram shape as well ? Symmetric , skewed left or skewed right

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Q: If Z~N(0,1), then what is Pr(-0.09 < Z < 2.54)? You can use Excel. Enter your answer as a decimal…

A: We have to find given probability

Q: SST = 4,432.818 R Square = 0.497 Observations = 26 Compute SSE (round to 3 decimals)

A: The value of SST is 4432.818, R square is 0.497. The value of SSE is,…

Q: Consider the following LP Min z = 3x, + 2.x, +7x, s.t - x, + X, =10 -2x, + x, - x, <-10 *,X,,x, 2 0…

A: Hi! As per norms, we will be answering the first question. If you need an answer to others then…

Q: (-1)" S. =È D n=1 Vn +1

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Q: Find the length of segment NL. N x-8 x- 5 4 K L. 0 4 15 O19 3.

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Q: If Z~N(0,1), then what is Pr(Z > -1.26)? Round your answer to three decimal places, e.g. 0.491.

A: PZ&gt;-1.26=1-PZ≤-1.26                                          Look into the left tailed z-tables…

Q: Find the values of t for which the area on the right tail of the t-distribution is 0.05 and the…

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Q: k E n(0.1)" Let Sk n=1 Find s3. S3

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Q: Suppose P(E1|E2) = 0.46, P(E2|E1) = 0.92, and P(E1) × P(E2) =0.18. Determine P(E2), giving your…

A: Given,P(E1 | E2)=0.46P(E2 | E1)=0.92P(E1)×P(E2)=0.18

Q: Find the P-value (to 4 decimals) for a x test with d. f. = 10 and STS x = 13 if the test is: %3D a.…

A: The degrees of freedom are d.f = 10 And the value of test statistic is = 13

Q: pre dieted Predic ted Classo 25 Class 1-customer places or der Achul Class 75 an ClaSsi ClassO 84…

A: Sensitivity=TPTP+FN Specificity=TNTN+FP

Q: 8 4 SS e*dædy O e16 – 1 e16 + 1 *+1 el6 2 O 2e16 – 1 O 2e16 +1 O el6

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Q: Find the sum of E n(n + 1)x" = for < x </

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Q: 3 n' (iv) En=1 2n³+5

A: (iv). Series  ∑n=1∞n32n3+5 diverges by divergence test for series.

Q: t al. (2013) asked st- then to predict the p 0 minutes later. Tab d its CI, between the Table 7.5…

A: Given, M1 = 48% = 0.48 S1 = 23% = 0.23 n1 = 21 M2 = 25% = 0.25 S2 = 21% = 0.21 n2 = 21   Thumb Rule:…

Q: Apply the direct comparison test to each of these series: 1 3n + 5 e 5/n – 2 n

A: Comparison Test: If we have two series  ∑nan   and  ∑nbn  such that  ∑nan≤∑nbn  then if ∑nbn is…

Q: (b) Compute the test value. Round the intermediate calculations to three decimal places and final…

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Q: x is within 5 units of 1. Olx-1 s5 |x - 1|> 5 |x -1|2 5 Olx-11-5

A: We will solve the problem

Q: An education researcher claims that 60% of college students work year-round. In a sample of 200…

A: Null and alternative hypotheses: The investigator is specifically interested to test whether the…

Q: s apply and showing all the details of the test =) for E n=2 nVn2-1

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Q: Can you provide any explanation for these results?  For THE 3 TABS BELOW: Tab 1, Tab 2 & Tab 3 TAB…

A: The mentioned variables are age of Miss America (x) and murder by steam, hot vapors and hot objects…

Q: Estimate the value of > to within 0.011 of its exact value. n n= 1 00 1 Σ (Round to three decimal…

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