Q1. The random variable X has an unknown mean but known variance of 8 i.e. X~N (μ, 8). A random sample of size 16 was collected which gave the sample mean of 7 and a sample variance of 11. Which of these is the distribution of this sample mean? A. X~N(7,8) C. X~N(7,0.5) B. X~N(µ, 0.5 ) D. X~N(7,11) ОА. А В. В С. С D. D

Q: Moving from static efficiency state with an unlimited resource supply to a dynamic efficiency state ...

A: Question:

Q: Jacques earned a score of 940 on a national achievement test. The mean score was 850 with a standard...

A:

Q: asked to guess the average weight of the six watermelons by taking a random sample without replaceme...

A: Here use sampling distribution without replacement 

Q: Using the General Social Survey of 2012, determine if there is sufficient evidence to infer that the...

A: Dear student, The solution in excel is provided below with the excel formulas (used in the excel she...

Q: Given are the scores of 10 employees from their 20-point assessment 16 18 10 8 12 15 19 17 16 7 Calc...

A: Given The Score of 10 employees from their 20-point assessment are 16 18 10 8 12 15 19 17 16 7 We wa...

Q: Let X and Y be independent, identically distributed RVs with the stan- dard normal PDF (x) = Find th...

A:

Q: Part Two A group of children picked oranges and made orange juice. The line plot below shows the amo...

A:

Q: Marks

A:

Q: The first of two sub-groups has 10 items with mean 15 and standard deviation 3. If the whole group h...

A:

Q: The following zero order correlation coefficients are given: l12 = 0.5 "13 = 0.6 r23 =.7 Calculate t...

A: When more than 2 variables are to establish the degree of relationship then the correlation is said ...

Q: Rapid Covid-19 antigen tests have an average sensitivity of 56.2% and average specificity of 99.5%. ...

A: Given information: Sensitivity=56.2%=56.2100=0.562Specificity=99.5%=99.5100=0.995PVirus=3.7%=3.7100=...

Q: 18. A die is made in such a way that an even number is twice as likely to occur as an odd number. If...

A: Probability : Probability may be a discipline of arithmetic involved with numerical explanations of ...

Q: . The Yupi Diliman Chancellor wants to know the current condition of the laboratory rooms in the cam...

A: We have given that,  The Yupi Diliman Chancellor wants to know the current condition of the laborato...

Q: The following zero order correlation coefficients are given : "12= 0.5 "13 = 0.6 r23 =.7 Calculate t...

A: Given,r12=0.5 , r13=0.6 , r23=0.7

Q: List the sample space of the following experiments. EXPERIMENT SAMPLE SPACE 1. Tossing two coin 2. T...

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

Q: Table entry Table entry for z is the area under the standard Normal curve to the left of z. > TABLE ...

A:

Q: educational

A: Continuous data type:  It's the type of Information that can be measured on a continuum or scale.

Q: Suppose X - N(u, a²) where o is known. Let X1, X2, ...X„ be a random sample of size n. Prove that u ...

A:

Q: Find the value of x such that P(X < x) = 0.95. (Round your answer to 2 decimal places.)

A:

Q: Question.  Let X be the result of a fair 6-sided die toss. Compute the moment-generating function MX...

A: There are 6 sides of a die.  Then probability of rolling any number i= 1,2,3,4,5,6 is  P(X=i)= 1/6  

Q: a) The research hypothesis H1 b) The null hypothesis HO c) The rejection region of the null hypothes...

A: here given A chicken farmer knows from experience that the average weight of five-month-old chickens...

Q: Let X,....., X, be a random sample from the N(0, o²) distribution, and suppose that the prior distri...

A:

Q: A lobbyist is trying to estimate the true proportion of US adults that support an upcoming bill. Whi...

A: Givenapproximation of p = 0.5Margin of error(E)=0.01confidence level = 95%

Q: Let X. X,.... be a sequence of independent identically distributed RVs having common MGF M(0), and l...

A:

Q: Given the confidence interval (0.53, 0.61), what is the width? 0.16 a b 0.04 0.08 d 0.02

A:

Q: Find the probability of each event. 13) A fair coin is flipped six times. What is the probability of...

A:

Q: What is the mean number of heart failure patients with the condition due to natural causes that ente...

A: Heart failure is due to either natural occurrences (84%) or outside factors (16%). Outside factors a...

Q: There is a looming crisis in universities and colleges across North America. In most places enrollme...

A: The given information is a sample of size 521 collecting the responses of aged professors about whet...

Q: In Alpha College, students are required to join at least one school club to get extra-curriculum act...

A: As per our guidelines we can solve first three sub part of question and rest can be reposted. Soluti...

Q: Suppose that x has a beta distribution with parameters a = 2.4 and B = 1. Determine to 4 decimal pla...

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

Q: (b) Interpret this probability by estimating the percentage of all people whose main satisfaction in...

A:

Q: Q2. The Normally distributed random variable X has an unknown mean and an unknown variance, o? i.e. ...

A:

Q: In CDMX, the population average of the age of pregnant women is 19 years. A sociologist believes th...

A: The random variable age of pregnant women follows normal distribution. We have to test whether the c...

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12.2 year...

A: Let X be the random variable from normal distribution with mean (μ) = 12.2 and standard deviation (σ...

Q: Match the correct critical values for the t, and chi-square and tolerance interval factor - v x2 0.0...

A: as per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other ...

Q: The Federal Bureau of Investigation (FBI), as part of its internal security mission, serves as a dat...

A: Given information: Model:logμi=β0+β1·Policei+β2·MedHomei+β3·IMayori+logPopi

Q: Need asap   At a certain bank which offers oonline transactions, the recorded span of time that cl...

A:

Q: Find the mean deviation about median

A: Here given frequency distribution of height 

Q: abstract

A: Categorical Independent Variables: The variables which are categorical and independent which means t...

Q: Let X1,.. X„ be n independent random variables with PDF fx, (x) = - [A,e- if x > 0, i = 1,2, ..., n....

A:

Q: In most judicial systems, a defendant is innocent until proven guilty. An attorney defends the null ...

A: The hypothesis test, will contain two hypotheses: null hypothesis and alternate hypothesis. The alte...

Q: Example 21. Ten competitors in a beauty contest were ranked by three judges in the following order :...

A:

Q: 1.4 Let X1, X2, X3, X4 U(0,0) and let Y 1. We reject Ho if Y, 2 c. Find the constant c that a = 0.0...

A:

Q: Given the interval (112, 136), what is the point estimate? 12 a 115 124 24

A:

Q: I. Type I error is committed when they approve the new procedure when in fact it would cure only les...

A: Here Take P=Proportion of Injuries cures by Procedure is being tested by Konoha general hospital 

Q: Measures of Position Find the following decile points using the following scores of 9 randomly selec...

A: Since you have posted a question with multiple sub-parts, as per our guidelines we have answered fir...

Q: 4. What is the total length of all the ski trails that are 2miles long? 5. What is the sum of the le...

A: Here use given line plot for answer the question 

Q: Cost of health care: The following table presents the mean cost of a hospital stay, in $1000, and th...

A: From the given information the graph shows the mean cost of a hospital stay, $1000. The number of ho...

Q: An article in International Journal of Electrical Power & Energy Systems "Stochastic Optimal Load Fl...

A: Given that, The method treats the system power demand as a normal random variable with 0 mean and un...

Q: At one university, the mean distance commuted to campus by students is 16.0 miles, with a standard d...

A: