(Q2) A store room measured in length equal to (5m + 3 cm), measured width equal to (4m 2cm) measured height equal to (3m + 4 cm), find the total volume of this room and the standard deviation.

Q: Find the raw score which corresponds to z=1.6?

A:

Q: Calculate SP (the sum of products of deviations) for the following scores.

A: From the given information, X Y 4 5 0 2 1 1 3 4

Q: ☺ a psychologist developed a test of spathial recognition and ske Wants to estimnte the mean scoreof…

A: 4. Given: σ=21.2E=2 From the Standard Normal Table, the value of z* for 90% level is 1.645. The…

Q: A sample of n = 4 scores has a mean of x̅ = 40, with a sum of squares of SS = 48. What is the…

A: Given that n=4, x̅ = 40 and SS=48 Consider, the variance, s2=SSn-1=484-1=16

Q: Find the mean value if y 1+x? between x-0 and x-1

A: Given function, y=11+x2

Q: fraction defective is to be maintained at 0.02, construct a P-chart for these data.

A:

Q: ind the slope of the normal line to the graph of the function at the given point. 4V6 (-1, 3 4x2 +…

A:

Q: A simple regression of y vs x reveals, for n = 22 observations, that r = 0.73. The standard…

A: There are n = 22 observations.

Q: Calculate the standard score of the given x value, x=41.3x=41.3, where x‾=41.4x‾=41.4, s=6.8s=6.8.…

A: Givenx=41.3Mean(x)=41.4standard deviation(s)=6.8

Q: Suppose that the mean systolic blood pressure for women over age seventy is 132 mmHg (millimeters of…

A:

Q: Ex. X = 400 Y = 700 Exr = 15, 000 Σε X2 = 16, 229 y2 = 50, 000

A:

Q: 63. From the following information, find the standard deviation of xand y variable Σx= 235, Ex2 =…

A:

Q: 2 Find the slope of the Normal Line to the curve y = X at (4, 2). 1 A) - B) -4 4 (D 4

A: topic - slope of normal to the curve

Q: a. Assume that nothing is known about the percentage to be estimated.

A: Given : Margin of error, ME = 0.04 sample proportion, p̂ = 0.5…

Q: for 1 < x < 3 f(x) = otherwise. Calculate the standard deviation of X , giving your answer to two…

A: The mean of the function,   Substitute the values in the above equation.

Q: if var(2x) = 16 then the standard deviation of x= Answer: 2

A: The variance is calculated as Var(ax)=a2Var(x)

Q: What is the uncertainty or Standard Error for this difference in proportions? (F

A: Here For People uses Internet Regularly Sample Size=n1=1754 x1=807 p1^=8071754=0.46 Now For people…

Q: a: To solve for the Mean: Variance: Σfx H b. To solve for the Range: R=UL-LL d. To solve for the…

A:

Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than…

A: It is given that n is 1,817 and x is 400.

Q: If you don't have a calculator, you may want to approximate (8.032)2/3 by 32/3. Use the Mean Value…

A:

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 claim is that the proportion of adults who smoked a cigarette in the past week is less than…

A: From the provided information, The hypotheses can be constructed as: Null hypothesis: H0: p = 0.25…

Q: The absolute value for the difference between the two ladies z-score is

A: Let , X→N(μ=15.7 , σ=7.43) Since , the Rena's score on the exam is 9 and Sara's score was 25. We…

Q: DA simple sample of heights of 6400 English men has a meal of 170cm and a S.D. of 6.4 cm, while a…

A: Note: We'll answer the first question since the exact one was not specified. Please submit a new…

Q: Q12) The distribution of the humber of imperfections per 10 meters of synthetic fabric is given by…

A: Correct answer is  0.1538

Q: Find the standard error of estimate, se, given that 00 F4 -

A: Here given regression equation  of sales

Q: Civil engineers collect data from an area in Canada on the amount of tons of salt used to keep…

A: The required margin of error is tn-1s2n-1=t30-1s230-1=2.045671330.929=311.1449

Q: The heights (at the shoulders) are: 600mm, 470mm, 170mm, 430mm and 300mm. Find out the Mean, the…

A: Here, x x-x (x-x)2 600 206 42436 470 76 5776 170 -224 50176 430 36 1296 300 -94 8836…

Q: For the relation 3Y= 12 -6 X between X and Y; if standard deviation of X, oz 10 and mean of Y…

A:

Q: The following table gives the width of road & the number of passing cars/hour for certain city ,…

A: Compute the correlation between the variables using short formula: The data represents the values of…

Q: Find the standard deviation using propagation of error for the following equation: t1/t2 N =

A: From the given information,   N=t1/t2   Here, t1=185.01+/-3.95 and t2=264.08+/-3.33   Standard…

Q: The manager of an orchard expects about 82 percent of her apples to exceed the weight requirements…

A:

Q: Q1/ By two method, find the average value of f(x) = 5 - on [-3,4] 2

A:

Q: the brand manager for a toothpaste brand must plan a campaign designed to increase brand…

A: The error is ±1.96×p1-pn=0.05assume p=0.5. This will give the most conservative estimate square on…

Q: Is the difference of means significant ? The value of t for 9 degress of freedom at 5% level is 2.26

A:

Q: For exponential smoothing forecasting with an alpha of 0.1, the MSE (mean squared error) is 2.98.…

A: For exponential smoothing forecasting with alpha of 0.1, the MSE is 2.98 and alpha of 0.05, the MSE…

Q: The percentage of scores falling below a z-score of .65

A:

Q: What is the LOD if the deviation of the blank response    is 0.001 and has the equation of the line…

A: Aim : To estimate the LOD from the regression line Regression: The linear regression explains the…

Q: Q1/ By two method, find the average value of f(x) = 5 - on [-3,4]

A: Given:

Q: µ = 9 has Σ X = 54. How many scores are in the populatio

A: Given that   A population with mean (μ) = 9 Summation of data values  Σ X = 54   We know that Mean =…

Q: Which point P should he choose in order to minimize the average length of his trip?

A: According to the question, consider a point P at a distance p, above or below, in the fence as shown…

Q: A. Does this mean the true average length of a pine needle is not 10cm (a = 0.05)? B. Does this mean…

A: Calculate the confidence interval as follows:Confidence interval = Mean +- Margin of error= 9.34 +-…

Q: Q2 find the mean and variance of the following distribution .f(x)= 6x(1-x) , 0<x<1 Also find P (µ ·…

A:

Q: For a set of observations, Q1 80 and Q3 = 130. %D Values greater than and less than are possible…

A: Solution

Q: For the relation 3Y= 12-6X between X and Y; if standard deviation of X, 0 = 10 and mean of Y values,…

A:

Q: The correlation between the heights ( measured in inches ) of brothers and the heights of their…

A: Solution Given the correlation between the height of  brothers and the heights of their sister is r=…

Q: What is the relationship between R sqare and p-value?

A: Relationship between R square and p-value

Q: he distribution of the number of imperfections per 10 meters of = fabric is given by the following…

A: We have to calculate the expected cost i.e E(g(X)) = E(1/100(x2 + 2x + 10))

Q: Given lo =90, perform a two-tailed t test with a 05 based on a sample ofN 4 scores with a mean of X…

A: From the given information: hypothesized population mean (μ) = 90 Sample standard deviation (s) =…