1) Define a martingale sequence. Give the intuition of it and two examples.

Q: all students who picked up all the tests they completed prior to taking the final exam. Suppose…

A: Given,Sample 1 :sample size (n1) = 56sample mean (x̄1) =  83sample standard deviation (s1) = 10.4…

Q: 1. Zcomputed 2. Zcomputed 3. Z computed Z/t Computed Value = 1.11, confidence level=90%, one-tailed…

A:

Q: If the p. d. f of a random variable X is f(x) = 2,0 ≤ x ≤ 2, then P(X> 1.5|X > 1) is

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Q: 1. Determine whether there is a significant difference on the perceived capabilities in research…

A: Anova is the analysis that used to compare the categorical variable which are numerical. It used to…

Q: Pandora, the owner of a food delivery app, knows from experience that the time needed to assemble a…

A: let X: the time needed to assemble a food delliveryX~N(μ,σ)where mean(μ)=30 minutesand standard…

Q: The probability that a randomly chosen student in a statistics class submits his/her homework on…

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Q: Sampling distribution Suppose population 1 is all blue cars sold at used car auctions, and the mean…

A: GivenThe population mean of blue cars μB=$24579The population standard deviation of blue cars…

Q: C. confidence interval D. all of these 36. Which of the following are the 95% confidence…

A: It is given that the 95% confidence interval. Here, need to find out the 95% confidence coefficient.…

Q: Sampling distribution Suppose population 1 is all blue cars sold at used car auctions, and the mean…

A: Answer:   Yes

Q: 10- If the random variable X has the gamma p. d. f with integer parameter a and arbitrary ß> 0, then…

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Q: Find the indicated limit. Note that l'Hôpital's rule does not apply to every problem, and some…

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Q: Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given…

A: Given information- We have given the selling price of TVs that are 60 inches or larger and rated as…

Q: 7- Suppose X, Y and Z be random variables with j.p.m.f. f(x, y, z) = kxyz with x E {1,2}, y = {1, 2,…

A: Given information: The value of k is obtained below:

Q: Suppose that the table shows the COVID-19 cases and deaths in some NCR cities during the COVID-19…

A: Given data is

Q: please i need corect answer  It is required to use the data given in the table to estimate the…

A: Use the Excel and Perform the Regression. Followings are the Steps to perform the Regression 1) Open…

Q: 6. Which of the following is true about probit analysis?

A: Probit analysis: It is a type of regression used to analyze binomial response variables.

Q: A machine has to be repaired if there are more than 10% defectives among all items it produces in a…

A: A null hypothesis could be a statement, during which there's no relationship between two variables.…

Q: During the 1950's and 1960's the average weight of vehicles sold in the U.S. was well over 4,000…

A: The correlation value is 0.9283.

Q: You would like to construct a 99% confidence interval to estimate the population mean time it takes…

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Q: A multiple choice exam has 4 choices for each question. A student has studied enough so that the…

A: Given that a multiple choice exam has 4 choices for each question. A student has studied enough so…

Q: Determine the sample size for a on-line survey with a variability of 30% and a 95% confidence…

A: Sample size n=z2(p*q)/e2

Q: A study on the correlation between sleep quality and academic performance of SHS students is done by…

A:

Q: Francis wants to donate his 15 books to his three friends. If he gives 7 books to one of his friend,…

A: You have 15 books. 7 to one friend 5 to other friend  And 3 to third friend.  No. Of ways to do this…

Q: 20. If Eunice has a percentile rank of 40, what is her height given the table below? Height in cm f…

A: From the provided frequency table The lower boudary is L=165The percentile rank is R=40The Total…

Q: A large home improvement store is considering expanding its selection of moving products, such as…

A: Given Information: Sample size n=620  Number of successes x=201 The 90% confidence interval to…

Q: The total of individual weights of garbage discarded by 15 households in one week is normally…

A: The total of individual weights discarded by 15 households is normally distributed with mean 29.7…

Q: Does it take a different amount of time for seeds to germinate if they are near rock music that is…

A:

Q: 11- Consider the sample space S= {(-2, 4), (-1, 1), (0, 0), (1, 1), (2, 4)}, where each point is…

A: The sample space is S={(-2,4),(-1,1),(0,0),(1,1),(2,4)} x is the fist component y is the second…

Q: Calculate the confidence interval for a population where the mean is 26 and the standard deviation…

A: Confidence interval are used to determine the real range where the parameter can likely to happen.…

Q: n article gave a scatter plot along with the least squares line of x = rainfall volume (m²) and y =…

A: Given, Independent variable (x)  = rainfall volume  Dependent variable (y) = runoff volume By using…

Q: Which of the following is a valid outcome of an inferential test? A. Accepting the null hypothesis…

A: We know that- Inferential statistics are used to draw a conclusion from any hypothesis test. In any…

Q: Answer the question(s) based on the following situation: For a population of 2000 students taking…

A: From the above quran  Option C is correct C. 637

Q: Do rats take less time on average than hamsters to travel through a maze? The table below shows the…

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Q: find the probability of observing (a) exactly 2 defectives, (b) at least three defectives, (c) 2≤X<5…

A: HERE given ,  there are 15 fuses in sample  p = probability of defective fuse = 0.05  q =1 - p= 1…

Q: . fast please The probability that a car will be sold at a profit of $3000 is 3/20, the probability…

A: Given  Probability of car being sold at different profit and loss values.we need to determine the…

Q: 5. Omitting relevant regressors from the model results in OLS estimators that are: a. biased but…

A: I will answer question 5 since the exact one wasn't specified. Please resubmit the new question…

Q: Let the probability density function of the random variable X is = {² (3) * 0 Then My(t) is f(x) = ,…

A: Given information: fx=213x, x=1,2,3,.... Formula: MXt=Eetx=∑i=1∞etxfx

Q: Syringes, pens, jet injectors, pumps, ports and even inhalers are the various ways for diabetics to…

A: It is needed to compare the compare the effectiveness of these two different methods of delivering…

Q: Based on experience, it is assumed that 60% of the customers of EDSA Sang Hotel are foreigners.…

A: Given that  p=60%=0.60 n=80 x=60 α=0.05

Q: ) What conditions are necessary for your calculations? (Select all that apply.) O uniform…

A: Given Suppose x has a normal distribution  s = 1.7 Xbar=50 n=12

Q: Senior high school students are randomly selected to gather data on the hours spent per day playing…

A: Answer :- Given a table of probability distribution  of X Length(In hours)  i.e  X Probability…

Q: Two groups of students are tested after two types of instruction. Student Group 1 receives…

A: Let μ1 denotes the true average of group 1 and μ2 denotes the true average of group 2.

Q: Which of the following is true about the variance? Extreme values may skew the given data set The…

A: The variance of a data shows how far each data points varies from their mean. Variance is best…

Q: Determine the force in each member of the loaded truss. Make use of symmetry of the truss and of the…

A: Given  Positive force are tensile and negative force are compression.we need to determine force at…

Q: You must estimate the mean temperature (in degrees Fahrenheit) with the following sample…

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Q: 7. t computed = 2.69, confidence level=99%, one-tailed, n=11 8. tcomputed = 2.56, a = 0.05,…

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Q: John's answering machine receives about 10 telephone calls between 8:00 am and 10:00 am. What is the…

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Q: While in college student athletes can compete for four seasons in each sport. Due to the maturing of…

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Q: Suppose you are taking a multiple-choice test with c choices for each question. In answering a…

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Q: X 5 y 3 5 3 -1 2 9 6 4 a) Construct a scatter plot of these data 0 1 9 5 3 b) Given that SST…

A: Given that