Example 24. The following table represents the marks obtained by a batch of 12 students in certain class tests in Statistics and Physics. Sr. No. 2 3 4 5 6 7 10 11 12 Marks (Statistics) : 53 54 32 30 60 46 28 25 48 72 33 65 Marks (Physics): 55 41 48 49 27 25 23 20 28 60 43 67 Indicate in which subject is the level of achievement higher?

Q: Example 37. table so that no two ladies are together? In how many ways can 5 gentlemen and 3 ladies…

A:

Q: What is the Discrete Standard Deviation when sample size is 57 with a probability of 0.30?

A: From the provided information, Sample size (n) = 57 Probability (p) = 0.30

Q: 5. Let (x1, 82, .., En) be a random sample from the distribution f(x) = Ax^-1; 0 0. Find the moment…

A:

Q: Questions 15-18 use the following information. Suppose in a sample of 5 men that their monthly…

A: Solution: Given information: k= 2 independent variables  n= 5 observation.

Q: Use a four-week moving average to develop a forecast for week 6. Use exponential smoothing with a…

A: This question is of time series. Moving avg , exp. smoothing etc are the methods to forecast. Given…

Q: It is claimed that the mean household size in the River Terrace neighbourhood is 3.5 persons. A…

A: Test is that whether the mean household size in the River Terrace neighbourhood is 3.5.

Q: a) What is the marginal distribution of Z2.

A: Here use given joint distribution function of z1 and z2

Q: 2. The following data give the household power (in kW.) usage of two areas in Selangor. 22.1 Kajang…

A: There are two independent samples which are Kajang and Bangi. We have to test whether the…

Q: Illu.18 : Chandra Ltd. issued 1,000 15% Debentures of Rs.100 each at Rs.95 on January 1st, 2002…

A:

Q: prove the theorem show that the sample mean is unbiased estimated of the population mean in…

A:

Q: he following grou Maths test.

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Make an illustration of how you understand the key concept of sampling. Hint: part of a whole

A: The  sаmрling  frаme  is  the  асtuаl  list  оf  individuаls  thаt  the  sаmрle  will  be  drаwn…

Q: 2. Automobile Repair Costs. Automobile repair costs continue to rise with the average cost now at…

A: Mean(µ) = 367Standard deviations (σ) = 88X ~ N (µ, σ )= N(367, 88)

Q: Five hundred first year students at a state university were classified according 3) to both their…

A: From the provided information,   Less than 3.0 3.0 to less than 3.5 3.5 and above Total…

Q: uppe ropc

A: dist <- tibble(p_grid = seq(from = 0, to = 1, length.out = 20))%>%  mutate(prior = case…

Q: The following contingency table records some information about a sample of visitors to Old Fort…

A: Given that ; Chi square = 17.0 A (3 × 5 ) Contigency table is given.  By using chi square concept we…

Q: elsewnere a) What is the marginal distribution of Z2. b) Find P(Z, s4)

A:

Q: -0,4x Y=12000- 25000e メ=? \f Y=0 %3D

A: For the given equation if y =o the x =?

Q: from the split data. c

A: Given Information: Dependent variable: Graduation rate Independent variables: (i) % of classes under…

Q: A sample is selected from a population with u = 50. After a treatment is administered to the 16…

A: It is given that Sample size n = 16 Sample mean M = 55 Sample Sd s = 8 Population mean = 50

Q: a) What is the marginal distribution of Z2. b) Find P(Z, s)

A: here given joint distribution of z1 and z2

Q: Q.7.1 Calculate the following, using the appropriate formulae: (Note: ALL calculations must be…

A: Mean: Mode: Quartile: Percentile: Standard deviation: σ=h21N∑fd2-1N∑fd2

Q: The table shows the frequency distribution of 60 Classes f employees and their daily wages. First…

A:

Q: Question 12 Calculate the 25th percentile for the data below. 35, 4, 27, 44, 42, 10, 4, 14, -9

A: We have given the following data  35,4,27,44,42,10,4,14,-9

Q: Given -.5 0.5/t 2(t) 1000 (1000/ Find: a. R(t) b.tr if a reliability desired is .90 c. if To = .5…

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Q: Apart from the usual random errors of measurement, an instrument has one source of bias which cannot…

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Q: COLUMN X COLUMN Y Q.1.1 A measure that describes a characteristic of a A. Sample population Q.1.2…

A: A random variable is a variable whose values depend on outcomes of a random experiment. It is…

Q: 2. Suppose that Z, and Z, have a joint probability density function given by (1 – z,2), 0 sz, S 1,…

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Q: Hand written please. STATDISK has the ability to find the sample size required to estimate a…

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Q: Give a 98% confidence interval, for μ1−μ2μ1-μ2 given the following information. n1=50n1=50,…

A:

Q: What is the predicted explanatory value? x =

A: The regression equation is y = -1.154x - 8.512, then x = (y + 8.512)/-1.154

Q: About 68% of possible sample means will be in the range between_____  and_____. About 95% of…

A: Suppose that you are interested in estimating the average number of miles per gallon of gasoline…

Q: BMX racing is a sprint sport where races range from around 30 to 45 seconds depending on the length…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Here is a set of data. 27 231 276 283 299 308 321 407 567 584 587 625 737 830 966 974 Identify the 5…

A: Data given  27,231,276,283,299,308,321, 407,567,584,587,625,737,830,966,974

Q: A mail-order company has two warehouses, one on the West Coast and the second on the East Coast. The…

A: Given :

Q: A math teacher claims that she has developed a review course that increases the scores of students…

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Q: Giving a test to a group of students, the grades and gender are summarized below Grades vs. Gender A…

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Q: Year Project A Project B -$5,000 -$10,000 $1,250 $1,100

A: Given as,

Q: Two samples are taken with the following sample means, sizes, and standard deviations ¯x1x¯1 = 21…

A:

Q: The estimated regression equation relating university GPA to the student's SAT mathematics score and…

A: The independent variables are H_GPA and SAT_math. This is multiple regression model. We have to find…

Q: (a) show that Z = – In Y; has exponential distribution with parameter 1. (b) Hence or otherwise,…

A:

Q: e are two sources of uncertainty: (i) der. Fill in the following table to illu the following table,…

A: A currency forward is a binding contract and the parties involved have to fulfill their part of the…

Q: Problem 3. A lottery gives you an award if you are able to choose correctly at least 5 mumbers out…

A: Given that We an award if we are able to choose correctly at least 5 numbers out of 6 and which are…

Q: Match the terms below to their best definitions. The value occurring most often in a group of cases.…

A: Mode is the value occuring most often in a group of cases.  Scatter plot is the best way to…

Q: 1. Suppose that Z, and Z2 are discrete random variables with joint probability distribution given in…

A: Cov(Z1, Z2)=E(Z1Z2)-E(Z1)E(Z2) Note: If any random variable are independent then it must be…

Q: 8.72 Given M = 88, M2 = 83, ty = 2.042, t = 2.040, and a two-tailed test %3D %3D %3D %3! with a =…

A: Given  M=88, M2=83, tcv= tcritical =2.042 , t=2.04=test statistic Two tailed hypothesis Level of…

Q: Imagine that a professor of psychology has two teaching assistants (TAs) who will help her grade…

A: Data is given for professor and two teaching assistants. We have to do correlation analysis.

Q: Calculate the value of  = sample proportion that believes in love at first sight.     (b) Calculate…

A: here given, n= 500 x= no of individual say that they believe in love at first sight = 330

Q: What is the probability of obtaining a z score that is as extreme as or more extreme than 1.96?

A: Here we have to find z score that is as extreme as or more extreme than 1.96

Q: Performance Task Instruction: Determine whether the following statements has a known or unknown…

A: