Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 3 15 13 31 Female 18 5 16 39 Total 21 20 29 70 If one student is chosen at random, Find the probability that the student got a 'A' GIVEN they are male.

Q: Prepare regret table from the given conditional profit table. Demanded Decision altermatives units 1...

A:

Q: According to the Centers of Disease Control, about 22% of American young people between the ages of ...

A: Givenabout 22% of the american young people between the ages of 12 and19 are obeseclaim is that the ...

Q: Question 22   A MAD (Mean Absolute Deviation) of 17.3 suggests which of the following?   Group of an...

A: From the given information we find the correct statement.

Q: What is the probability of rejection of an article submitted to this journal? b)       If the artic...

A: Let us define some events A : article is in the biomaterial field. B : article is in the tissue engi...

Q: 2. Define Binomial Distribution. What is the probability of guessing correctly at least sir of the t...

A:

Q: Suppose there are 2 quantitative free variables and 1 variable non free category. Non-free variables...

A: The unstandardized coefficient of an independent variable is a measure of the strength of a relation...

Q: The following data relate to the sales, in a time of trade depression of a certain article in wide d...

A:

Q: Multiple Regression Output from EXCEL is shown below at alpha 0.05 SUMMARY OUTPUT Regression Statist...

A: From the given Multiple Regression Output: The regression equation is y= β0 + β1 x1 + β2x2where, y =...

Q: Using a confidence level of 99%, estimate the proportion of all spectators that travelled to the are...

A: It is given that Sample size n = 400 Number of spectators that travelled to the arena by car, X = 35...

Q: Determine the following whether Discrete or Continuous Random Variable: 1. X: The number of defectiv...

A: Since you have posted multiple sub-parts of  question , we will solve first three sub-part of  quest...

Q: A random sample of size 20 from a normal population gives the sample standard deviatior of 6. Test t...

A: The null and alternative hypotheses are: H0:σ=9 H1:σ≠9

Q: I have an unfair coin for which P(H) =p, where 0 <p< 1. I toss the coin repeatedly until I observe a...

A:

Q: 40. What is the residual for X1 = 14.620 x2 = 226.00 x3 = 7.000 with y = 128.40? (a) -6.7838 (b) 1.1...

A:

Q: The owner of rental houses claims that the average length of occupancy is 3.2 years. A random sample...

A: Any assumption about the parameter or probability function is known as hypothesis testing. For the g...

Q: I toss a fair coin twice, and let X be defined as the number of heads I observe. Find the range of X...

A: Given that  A fair cion tossed twice  Total outcomes=22=4 Sample space=S=(HH,HT,TH,TT) X=Number of H...

Q: 1-4. X, X2, is a random sample of N(4, a2), find the distribution of Y =

A: Given  X~N(μ, σ2)  Result used.  aX~N(aμ, a2 σ2)   

Q: 3. Fit a linear trend to the following data by the least squares method. Verijy mar Ey-y)=0, where y...

A: If the values of a variable when plotted against times cluster more or less around a straight line i...

Q: Find the sample variance and standard deviation. 4, 45, 14, 48, 32, 24, 34, 32, 31, 31 D Choose the ...

A: Given that  The data are 4,45,14,48,32,24,34,32,31,31  

Q: 2. You would like to check if the average wage of Danish men and women is the same. In order to do t...

A: In order to claim if two assumed population means (i.e., "the average wage of Danish men" and "avera...

Q: 50. Σ(Χ - 1)2 = 1) 2

A: Given : data value in table  X: 0,3,5,7  Y: -2,3,0,1  Then to find sum(x-1)^2 ??

Q: THE NUMBER OF CUSTOMERS SERVICED BY 3 PARLORS. Number of Customers(X) Spa A PCX) 0.37 Spa B POX) 0.3...

A: Given : The no. of customers serviced by 3 parlors  Here find the population variance of Spa C So , ...

Q: The following table shows the incomplete ANOVA for multiple factors experiment. Source of Fcritical ...

A: Complete the Anova table  State the true statements and select the option

Q: 6. A company has the head office at Kolkata and a branch at Mumbai. The personnel director wanted to...

A: Two proportion Z test : A two proportion z-test is employed to check for a distinction between two p...

Q: tch the ACF plot. 0.8, 02 = 0.6, 03 = 0.4 and 04 = 0.2. Generate n = 150 observatio w, let 01 = s MA...

A: *Answer: 

Q: Using the Binomial distribution, If n-9 and p-0.3, find P(x=7) Question Help: DPost to forum

A:

Q: 7. Find the class intervals if the arithmetic mean of the following distrihution is 33 and assimed m...

A:

Q: U= {all natural numbers up to 8} , with the following subsets A= {1,3,5,7} B = {2,3,5,7} c= {2,4,6,8...

A: ∪ = { all natural number upto 8} A = { 1,3,5,7} B = { 2,3,5,7} C = { 2,4,6,8}  

Q: The contrast of ABC is O abc + a + bc + (1) - b - c - ab - ac O abc + a + b +c - ab - ac - bc - (1) ...

A: treatment I A B AB C AC BC ABC (1) + - - + - + + - a + + - - - - + + b + - + - - + - + ab + ...

Q: A) What is an appropriate test statistic? B) Specify the critical region for a test with significan...

A: It is given that sample of two types of house is taken, one with standard level of insulation and se...

Q: Let X1,..., Xn be Show that Y = min(X1,. %3D Show that

A: From the given information, X1, X2,.....,Xn are independent, Xi~expλi The density function for Xi is...

Q: sample mean 92.0 94.0 sample standard 2.0 1.5 deviation sample size 12 10 Determine the computed p-v...

A: The F-test statistic is used in hypothesis testing.

Q: The weights of a sample of newborn calves are recorded in the table below: 31.9 46.8 37.5 43.0 Male ...

A: Given: level of significance = 0.05   male   female  38.2 36.8 41.7 37.2 31.9 42.6 46.8 39.1 37.5 45...

Q: The mean marks of 100 students were found to be 40. Later on it was discovered that a score of 53 wa...

A: Given,sample size(n)=100mean(x¯)=40wrong value=83correct value=53

Q: 13 The data below represent the amount of grams of carbohydrates in a serving of breakfast cereal. 1...

A:

Q: A(4) mödel P1 P2 0.6, P3 0.4 P4 a) Sketch the ACF plot. b) Now, let 01 = 0.8, 02 = 0.6, 03 = 0.4 and...

A: Moving average  models are generally used in a time series models  and fitted using past error as la...

Q: A national survey indicated that 25% of adults conduct their banking online. It also found that 35% ...

A: As per our guidelines, we can answer only the first question, Kindly repost the others for answers  ...

Q: 10. Fit a second degree parabola to the following data. : 2 3 4 Y 1090 1220 1390 1625 : 1915

A: Given that, X: 1 2 3 4 5 Y: 1090 1220 1390 1625 1915   We need to fit a second degree parabo...

Q: For a group of 10 items EX = 452, EX²=24,270 and mode = 43.7. Find Pearson's coefficient of Skewness...

A: We have given that,  Sample size (n) = 10 , Σ x = 452,  Σ x^2= 24270 and mode = 43.7 Then,  We will ...

Q: Exercise 2: Trying to encourage people to stop driving to campus, the university claims that on aver...

A: Given  μ=population mean=30+m  x̄=sample mean= 24+m  n=40  Hypothesis  Ho: μ≤30+m  Vs H1: μ &gt;30+m...

Q: The following table shows the probability distribution function for the number of high school years ...

A: We have given that,    X p(X= x)  0 0.10 1 0.10 2 ?  3 0.34 4 0.14   Then,  We will ...

Q: I toss a coin twice and define X to be the number of heads I observe. Then, I toss the coin two more...

A: Since X and Y are the result of different independent coin tosses, the two random variables X and Y ...

Q: 44. What is the value of E(X + 3)² for the scores: 1, 5, 7, 11?

A: Given score is 1, 5, 7, 11

Q: 14. If 10 men, among whom are A and B, stand in a row, what is the probability that there will be ex...

A:

Q: A tire manufacturer claims that the average life of a certain grade of tire is greater than 25,000 m...

A: Given: sample size, n=15 Sample mean, x¯=27000Sample sd, s=5000α=0.05

Q: When Steve plays chess against his favorite computer program, he wins with probability of 0.60, If h...

A:

Q: 13 The data below represent the amount of grams of carbohydrates in a serving of breakfast cereal. 1...

A: Given : Data 11 15 23 29 29 22 21 20 15 25 17

Q: On three examinations, a student received scores of 78, 83, and 77. What score will the student need...

A: Given scores are- 78,83,77 Mean=82

Q: A high school football coach is trying to decide which quarterback he should start in next week's ga...

A:

Q: 13 The data below represent the amount of grams of carbohydrates in a serving of breakfast cereal. 1...

A: Given that  The data are 11,15,23,29,29,22,21,20,15,25,17 Plot Box-and-whisker

Q: Find the conditional probability. The following contingency table provides a joint frequency distri...

A: Required probability is P(Democrat | Northeast)