If the average of z and 5z is 30, what is the value of a?

Q: The overall differences between treatments is represented by the _________.

A: ANOVA is Analysis of Variance.

Q: Which of the following would lead to the best comparative exam score? a. x= 65, µ=60 and the σ=2 b.…

A:

Q: Given the following data, Number of patients positive for VDRL is 56. Total number of patients is…

A: We have given that,  Number of patients positive for VDRL (X) = 56 and Total number of patients (N)…

Q: For a population with μ = 80 and σ = 10,what is the X value corresponding to z = -0.50?

A: Given information Mean (µ) = 80 Standard Deviation(σ) = 10 Z = -0.50 Z-score is given by the…

Q: find the the z score shaded area for given data    (-3.21<z<2.2587)

A: Given probability is P(-3.21&lt;z&lt;2.2587)

Q: If E(x; – X)² fi = 600 and E f; = 30 , The variance value is equal to %3D

A: The variance is calculated by  Variance= (1/N) sigma fi(xi - X)^2

Q: Is all variation necessarily numerical?

A:

Q: What is the value of a?

A: Given expression: a+x5 Also, given that co-efficient of x2 is 640. We need to find the value of a.

Q: A supervisor is asked to score two groups of employees on how difficult he thinks their job is to…

A: Given   job difficulty 1 job difficulty 2 3 11 9 10 10 17 2 15 13 15 2 4 7 16

Q: What is the measure of Z?

A:

Q: [A] If w = 4y° - 5y, find the percentage error in w at y = 1, if the error in y 0.04.

A: Need to find error in w

Q: For the data set (table 1) below, solve for the sum of products for x and y, or Sxy Table 1 y 2.73…

A: Formulate the below table

Q: The average score in a Science exam was 82 with a SD of 4. The average score on a Math exam was 96…

A: Given : For Science Exam : =82 =4 For Math Exam : =96 =3

Q: For a population with a μ = 80 and σ = 10, Find the z=score for each of the following X values:…

A: Given: Population mean (μ) = 80 Population standard deviation (σ) = 10 The formula to compute the…

Q: The average value of f (x) = x – 4x on [3,9] is -3 90 O 15 O 4

A:

Q: What is the value of A?

A:

Q: Find the measure of ZP.

A: Here we have to find the m∠P=?

Q: In one of his Subsidiaries, sheltron, gasoline is stocked in a bulk tank each week. Let x denote the…

A: Given that  X: proportion of tank's capacity stocked per week Y: proportion of tank's capacity sold…

Q: for a population with a µ = 60 and σ = 12 Find the z-score for an x value of 75

A: The mean is 60 and the standard deviation is 12.

Q: If the z-score for a motel is 0.7, what is the price of a single room at the motel (in dollars)?

A: The formula for z score is, z=x-μσn In the formula, x is the individual score, μ is the mean, σ is…

Q: The average value of y=v(x) is 4 for 2≤x≤5 and is 10 for 5≤x≤12. What is the average value of v(x)…

A: Given,  The average value of y=v(x)  is  4  for  2 ≤ x ≤ 5   The average value of y=v(x)  is  10…

Q: What proportion of the variation in y can be explained by the variation in the values of x?

A: Here we have given the regression equation Y = 64.21X+ 44.09 and the correlation coefficient, r =…

Q: Vp Pq n

A: Given that

Q: The sum of 20 observations is 300 and its sum of square is 5,000 and median is 15. Find its…

A:

Q: What is the measure of b?

A:

Q: If X follows N (10, 1) and U= 120+6X, then variance of U is, a) b) c) d) 15 12 36 102

A: Given: X~N0, 1 ⇒VarX=1

Q: For the samples r(tk) = 4,2,6, –1, plot the "sinc" interpolation function. In your %3D opinion, does…

A: The basis function used in 'sinc' interpolation is : sinc(t) = sin(πt)/(πt)  when t≠0  and  1  when…

Q: For a population with m = 62 and s = 12, find the X value that corresponds to each of the following…

A: Formula of z score is as follows ,  z = x -μσ ⇒ x = z*σ + μ where ,  μ is population mean σ is…

Q: If there were 500 students in Jamal’s class, approximately how many students scored higher than…

A:

Q: The trunk diameter, in centimeters, of a certain variety of pine tree is represented by X~N(150,…

A: We have to find out the z-score for a tree with a diameter of 170 centimeter..

Q: The sum of 20 observations is 300 and its sum of square is 5,000 and median is 15. Find its…

A: In question, Given that The sum of 20 observations is 300 and its sum of square is 5,000 and median…

Q: a) Comment on the relationship between the two variables in case 1 b) Explain what that p-value is…

A: Here, we are investigating the relationship between the variables "Number of customers served each…

Q: Given the following information, describe the variation. x3 1.5 0.5 0.3 5 10 30 50

A:

Q: If a constant c is added to each xi in a sample, yielding y; = x; + c, how do the sample mean and…

A: Note:-Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: For a population with μ = 60 and σ  = 8, the X value corresponding to z = -0.50 would be?

A: Given:  μ =60 σ =8  z = -0.50

Q: for a population with μ = 60 and σ = 8, the X value corresponding to z = 1.50 would…

A:

Q: 2. Find the following z-scores: a. Za10 b. Z.975 c. Z,005 0.005 d. Zs Zo30 "0.80 "0.30

A:

Q: Given the following information, describe the variation. 3 7 10 y 2 8 20 29 A Direct Variation…

A: Direct variation describes a simple relationship between two variables . We say y varies directly…

Q: A set of n = 10 pairs of scores has ∑X = 20. ∑Y = 30 and ∑XY = 74. What is the value of SP for these…

A:

Q: What is the p value and z value?

A: The sample sizes are 400 and 500.

Q: When X; only takes two values {0, 1}, what are the possible values of the estimates of p?

A: Solution : Given that , X1,X2,...........Xn be a random sample from population.Considering…

Q: How to Compute t and p for the difference between means?

A:

Q: A set of n = 10 pairs of scores has ΣX = 20, ΣY = 30, and ΣXY = 74. What is the value of SP for…

A: It is given that ΣX = 20, ΣY = 30, and ΣXY = 74.

Q: For the data above, calculate is the value of SSþetween treatments and SStotal · SSbetween…

A: Given:

Q: Calculate f (8)using linear interpolation formula from the following table 10 S(x) 4. 9. 16

A: Linear interpolation formula is  fx=fx1+x-x1fx2-fx1x2-x1                        1 Here, x1=7, x2=10,…

Q: Use the following scores to find the value of (Ex)² = %3D 4 3. 2.

A:

Q: The histogram for city restaurants shows that the cost of meals is concentrated between…

A: From the histogram of cost of meal at city restaurant we can see that the midpoints of the classes…