QUESTION 2: The manufacturer of a balloon claims that there is 4% chance that the balloon contains some holes. if 15 balloon are chosen a- what is the probability that i- all the balloon contains some holes ii- more than 13 balloons contains some holes iii- at least 2 balloons contains some holes b- find the mean and variance

Q: Question 2: Suppose that X is a normally distributed random variable with mean value 5.0 and…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: QUESTION 5 Here is a set of data. 1 80 121 312 346 352 400 440 535 574 793 812 818 979 Identify…

A: According to our policy we can answer only first question for remaining please repost the question.

Q: The probability that a house in an urban area will be burglarized is 5%. A sample of 50 houses is…

A: Let, X is the number of houses that were burglarized. X~Binomialn=50,p=0.05

Q: Problem 4 | The daily revenue of an online retailer has mean 20 and variance 400. (i) Find the…

A: Let X be the daily revenue of an online retailer has mean 20 and variance 400. That is, X follows…

Q: Question 16 The mumber students who enter a Library in an hour is a poisson random variable. and…

A:

Q: How many tissues should the Kimberly Clark Corporation package of Kleenex contain? Researchers…

A: Null hypothesis: µ=75. Alternative hypothesis: µ<75. This is a left tailed test. Here, the sample…

Q: Question 2 Assume that a human pregnancy has a population mean of 280 days and a population standard…

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

Q: Time spent for meeting during Covid-19 A newspaper report stated that the hours spent by office…

A: The amountof time that office workers spend in attending meetings per week during Covid is…

Q: the 2) Find the standard deviation of sample. population 2, 4, 7, 12, 15 Find the variance for the…

A: We have to find the variance and standard deviation.

Q: QUESTION 4 A normally distributed random variable X with variance o2=256 and P(X> 130)-D0.6554.Then…

A: In question, Given that the variance of random variable X is 256 and P(X > 130) = 0.6554 Then…

Q: Problem 5) Show that if X is a Normal random variable with a meanµ and standard deviation o, then…

A: Given that X follows Normal distribution and Y is defined as Y = a X + b

Q: QUESTION 9 An analysis of variance differs from a t test for independent means in that an analysis…

A: We want to tell you which one is the correct choice.

Q: The MTA’s daily operating profit is normally distributed with a mean of -30 million dollars (that’s…

A: X follows a Normal distribution with mean = -30 and S.D = 50 Then z=(x-mean)/SD = (x-(-30))/50…

Q: If a research article presented the results of an analysis of variance as, ?F(2, 38) = 3.60, p <…

A: Given, F(2, 38) = 3.60 Hence, Group degree of freedom is =2

Q: QUESTION 17 The variance of a binomial random variable's distribution equals 8.40, for given values…

A: Introduction :-  Given that X follows Binomial distribution with n = 40 and p = 0.20 We have to…

Q: (QUESTION 7) A doctor has claimed that the creatinine level of hemodialysis patients is less than 7.…

A: Given data: Population mean = 7 Sample mean  = 5.9 Sample standard deviation  = 4 Variance = 64…

Q: Question 9 X is a random variable with mean and variance H and of, The standardized form of X is 2 =…

A:

Q: Question 2 Assume Y is a discrete random variable with a mean and a variance of 2, and let X = Y +…

A:

Q: Question 3 a) The table below represents the subject scores for 144 students.   Subject Male (M)…

A: Given that  Subject Male (M) Female (F) Total A: Business Ethics 4 14 18 B:…

Q: Which of the following sets of data would produce the largest value for Cohen’s d?   a. This cannot…

A: Solution: b) Given  n= 10 sample size for both samples  sp2=16 Pooled variance Mean difference = 3…

Q: QUESTION 6 A normally distributed random variable X with variance o2-256 and PO> 130)=0.9251. Then…

A: Given Sigma^2=256 P(X&gt;130)=0.9251 We want to find the value of mean

Q: QUESTION 7 The sample space for a geometric random variable is O a. uncountable O b. finite…

A: We know that set of all possible outcomes is called sample space

Q: Question 4 946 red firs 217 A buyer must decide whether or not to accept a shipment of 40 parts. The…

A: Solution-: Given: N=40,M=5, n=6 Our aim to find, (a) P(accept shipment no defective parts are…

Q: Problem 2. Assume that the height of adult women were normally distributed with a mean of 63 inches…

A: If n=36 P(X&lt;62)=?

Q: ble with mean 20 and 22 and less than 24? Question 11 Role-playing games like Dungeons & Dragons use…

A: Random variables are of 2 types, discrete and continuous. A discrete random variable can only take…

Q: QUESTION 6 A researcher believes that 25% of U.S. adult workers are satisfied with their jobs. To…

A: Given : Claim : 25% of U.S adult workers are satisfied with their jobs Sample size (n) = 410 Let X :…

Q: QUESTION 28 Consider the following set of numbers, each of which represents the number of hours of…

A: In question, We have given some data points which are, 4, 6, 6, 8, 8, 8, 10, 10, 12 Then we'll find…

Q: QUESTION 8 If X be a normally distributed random variable with variance of 25 such that P(X > 20) =…

A: Given information Variance = 25 Standard deviation ? = √25 = 5 P(X&gt;20) = 0.0778 P(X ≤ 20) = 1 –…

Q: Clearly indicate with reasons the types of random variable the expression “Heights of people in…

A: Variable in statistics are of different types.

Q: The management of a supermarket wants to adopt a new promotional policy of giving free gift to every…

A: We know that, the expenditure for all customers, X ~ N(400, 900) or, X ~ N(400,302) or, Z = (X -…

Q: The sample correlation coefficient is equal to the covariance of x and y divided by the square root…

A: The sample correlation coefficient is: rxy=Covx, ysxsy

Q: cereal-packing company where the content of cereal boxes must have a mean of 368 grams and a…

A: From the given information we want to find the probability that sample mean is below 365

Q: find the probability that the difference between sample proportions is less than 6 percent.

A: Given : p1=0.648 , p2=0.721 , n1=250 , n2=200 Our aim is to find the probability that the difference…

Q: An analogue signal received at a detector, measured in microvolts, is normally distributed with mean…

A:

Q: Question 7 Engineers must consider the breadths of male heads when designing helmets. The company…

A:

Q: Question 1: Suppose that 36% of all university students regularly eat breakfast. In a random sample…

A: Note: According to our guidelines we can answer only first question and rest can be reposted.

Q: Assume the number of physical damage losses for houses as a result of hurricane Irma in Barbuda is…

A: Given that  X~N( μ = 4000 , ? = 800 ) μ = 4000 , ? = 800 Z-score =(x-μ)/? Note: According to…

Q: QUESTION 5 A random sample of size n = 25 is drawn from a normal population with a variance of 16,…

A:

Q: QUESTION 14 An investor has decided to form a portfolio by putting 45% of his money into Google's…

A: The given statistics for the two stocks include μG=12%μA=20%σG=0.10σA=0.20 And the proportion, x,…

Q: QUESTION 3 The number X of refrigerators sold per day at a local appliance store is shown in the…

A:

Q: QUESTION 24 A normally distributed random variable X with variance o2=256 and P(X> 130)-0.9251. Then…

A:

Q: QUESTION 11 The service time for customers coming through a checkout counter has mean 51.4 seconds…

A: We have given that  mu=51.4 ,sigma=6.8 and n=64 Z-score=(x-mu)/sigma X~N(mu , sigma^2)

Q: QUESTION 18 Consider a binomial random variable where the number of trials is 12 and the probability…

A: We have to find mean and standard deviation for binomial experiment.

Q: Question 2(b) b) Employers want to know which days of the week employees tend to take as a casual…

A: The data is uniformly distributed and we've to test for frequencies. Null hypothesis,  H0: The days…

Q: Question 14 In single-factor ANOVA, MSTr is the mean square for treatments, and MSE is the mean…

A: In single-factor ANOVA, MSTr is the mean square for treatments, and MSE is the mean square for…