4. Suppose that Y₁, Y₂..Ym is a random sample of size m from Gamma (a = 3,ß = 6), where 0 is not known. Check whether or not the maximum likelihood estimator is a minimum variance unbiased estimator of the parameter 8.

Q: You may need to use the appropriate appendix table or technology to answer this question. The…

A: Given that: Sample size, n=256 Sample mean, x¯=112 Sample standard deviation, s=39

Q: what is the probability that all three are defective? (b) If four items arrive in succession, what…

A: It is given that  P( defective ) = p = 20% = 0.20 Here, we have parameter p = 0.20 and n ( different…

Q: a. If a particular bid results in a serious error in estimating job cost, what is the probability…

A: It is given that  P( E1 ) = 30% = 0.30,   P( error/E1 ) = 0.01 P( E2 ) = 20% = 0.20,   P( error/E2 )…

Q: re two methods of teaching. A lesson assess d of teaching. The results are shown below! Method A…

A: Question 2 :  Given, For Method A : sample size (n1) = 25 sample mean (x̄1) = 90 sample standard…

Q: A. cheese can be classified as either raw-milk or pasteurized. Suppose that 94​% of cheeses are…

A: Given,P(pasteurized)=0.94sample size(n)=6

Q: A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed…

A: We have given that,  The data set are :- 0.58,0.69,0.10,0.90,1.31,0.55,0.84 Then,  We will find the…

Q: The amount of time (minutes) a sample of students spent on online social media in a 4-hour window is…

A: From given data : Given the amount of time (minutes) a sample of students spent on online social…

Q: 6.4 a. Find the mean b. Find the median. c. Find the mode. 6.7 7 OF 16 15. A teacher gave a quiz to…

A: data of a teacher gave a quiz to his economics classstudent score .....73,82,64,61,63,52,73,70here…

Q: d. In how many classes were 2 students absent? 0 e. How many times were no more than 2 students…

A: number absents number of classes 0 3 1 3 2 5 3 8 4 5 5 3 6 3

Q: Dylan has a bag of M&Ms with 7 green, 13 cyan, and 5 yellow M&Ms. Find the following probabilities…

A: Here we are given that Dylan has a bag of M&M with 7 green, 13 cyan and 5 yellow M&Ms. Also…

Q: Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b)…

A: Given that P value =0.0263 ,α =0.05

Q: In testing a certain kind of missile, target accuracy is measured by the average distance X (from…

A: Given, X 0 10 50 100 P(X) 118 19 29 1118

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A: GivenMargin of error(E)=5standard deviation(σ)=60confidence level=95%

Q: The PDF of a random variable X is given by ƒx (x) = 4x (9 — x²)/81, 0≤x≤3. Find the mean, variance…

A:

Q: The data represent the number of driving fatalities for a certain area by age for male and female…

A: The given table:    Total number of females = 14401 Total number of females who are age of 21-34 is…

Q: BFW Publishers An article in Forbes magazine claims that half of the adults in the United States do…

A: Given claim: At least 50% of the adults do not have any savings. Null Hypothesis: H0: At least 50%…

Q: A study reports that 54% of all people own calculators. Suppose that four people are chosen at…

A: As per our guidelines we are supposed to answer only one question and 3 subparts of that question so…

Q: e-/ if x > 0 Question 2. Let X₁,, Xn be iid random variables with the pdf f(x) (otherwise f(x) = 0).…

A: It is given that the pdf f(x) = { (1/θ)e-x/θ , x>0              0,     Otherwise }

Q: A veterinary epidemiologist wishes to investigate the use of antibiotics on cattle farms in a city.…

A: 4 types of sampling 1: simple random sampling  * Random selection from population to make sample.…

Q: In testing a certain kind of missile, target accuracy is measured by the average distance X (from…

A:

Q: Answer the following problems with solutions using the six steps of hypothesis testing. 3) A sample…

A: The mean significance between the sample and the population is tested using the hypothesis testing.…

Q: Suppose that Y₁, Y₂, ..., Ym and X₁, X₂, ..., Xm are independent normally distributed random samples…

A:

Q: (Math 161A/163 review) Suppose that X₁, X2, X3 are independent Exponential (A) random variables. A>…

A:

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A:

Q: Suppose that a random sample X₁, X₂,...,X20 follows an exponential distribution with parameter ß.…

A:

Q: p and q are unknown. me nearest integer.) 25% of adults can wiggle their ears. me nearest integer.)…

A: Given that  Margin of error =E=3% E=0.03

Q: Say Dr. Callahan measures her students' levels of narcissism. Her findings reveal that narcissism…

A: Given information: Her findings reveal that narcissism rates are higher in her male students versus…

Q: You flip a biased coin (P(H) = 0.56) until you get a heads. The random variable X records the number…

A: Answer..

Q: Answer the following problems with solutions using the six steps of hypothesis testing. 1) Below is…

A: Followings are the Explanation of the question   Use the Two sample Intendent t test    Use The…

Q: Suppose that Y₁, Y₂, ..., Ym is a random sample of size m from Gamma(a = 3, ß = 0), where 0 is not…

A:

Q: Malik currently has 39 tulips in his yard. Each year he plants 3 more. (a) Which of the following is…

A: given data  malik havs 39 tulips in his yard each year he plants 3 more  so,  p0= 39 d = 3

Q: A clothing business finds there is a linear relationship between the number of shirts,n, it can sell…

A: Given that n1 =23000,p1 =55 n2 = 31000 , p2 = 39 P =?

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.09%. A random selected. What is…

A: 1) From given data we have : Mean μ=2.09% standard deviation, σ=1.32% Sample size, n=32

Q: A. Identify the actual number of respondents who ted them selves above average drivers. B Identify…

A:

Q: 2. Researchers studying anthropometry collected various body and skeletal measurements for 507…

A: Given that We have to find the best variability:

Q: Use the results from a survey of a simple random sample of 1155 adults. Among the 1155 respondents,…

A: Solution

Q: Over the years, the mean IQ of freshmen applicants in a university in a province has been determined…

A: Given: Sample size, n=85 Sample mean, x¯=94 Sample sd, s=10 Population mean to claimed, μ=91

Q: a. Assume that is known about the percentage of passengers who prefer alsie seats. n= (Round up to…

A: given data 90% ci E =0.015n= ? α = 1-0.90 = 0.10Zα2 = Z0.05 = 1.645   [from excel function…

Q: You may need to use the appropriate appendix table or technology to answer this question. Consider…

A: Given Hypothesis Ho,: μ≥70 vs H1: μ<70(left tailed)

Q: The value of the test statistic is (Round to two decimal places as needed.)

A: It is given that  Claim: Fewer than 91% of adults have a cell phone. Population proportion, p = 91%…

Q: What is the probability that the customer is older than 20 but no older than 50?   What is the…

A: It is given that a store gathers some age related information from their customers.

Q: The probability that a student correctly answers on the first try (the event A) is P(A) = 0.2. If…

A: Let A= the student correctly answers on the first try  B=the student correctly answers on the second…

Q: 13. September 22 is the birth date of Kim Hyo-Yeon, a singer with the South Korean girl group Girls'…

A: Given information: Sample size (n)=129 Based on the sample box plot is given. Find: Question 13.…

Q: 20% of adults in the particular community have at least a bachelors degree. Suppose X is a binomial,…

A: It is given X is defined as the number of adults with at least a bachelors degree.

Q: 1. A foundation, that aims to help families that were struck by natural disasters, conducted a fund-…

A: Given that We have to find mean, median and mode:

Q: You scored a 85 on a stats test with a mean of 70 and a standard deviation of 7. You also score a 90…

A:

Q: 2. The following distribution shows the pork barrel given to 100 Congressmen for the year 2019.…

A: Class Class Boundries Frequencyf cf 1 - 100 0.5 - 100.5 5 5 101 - 200 100.5 - 200.5 12 17 201…

Q: (Multiple choice) Which of the following statements correctly describes the difference between…

A: Here we are given 4 statements and we have to which of them correctly describes difference between…

Q: 6. Given the following sample of n = 10 scores, for each individual score calculate the following:…

A: As Prof. P. K. Giri said "The z-score is a score expressed in terms of hypothetical standard normal…

Q: How do I figure out the first quartile and the third quartile is? How do I determine the percentile…

A: To find: (a) Find the first and third quartiles. (b) Find the IQR. (c) Find the upper and lower…