number of components must fail before completing the 100 hours of work, considering that the behavior is a poisson variable the average number of components that fail is 8 a) what is the probability that a component will fail in 25 hours? b) what is the probability that no more than 2 components will fail in 50 hours?

Q: The mean number of minutes for app engagement by table use is 8.2 minutes. Suppose the standard…

A: Given: μ = 8.2 minutes σ = 1 minute n = 70 Formula Used: Z-score = ∑X-(n)(μ)(n)(σ)

Q: A study considered whether greater levels of television watching by teenagers were associated with a…

A: The z test are used to measure the mean significance between the two sample. It is used when the…

Q: If n=20, ¯xx¯(x-bar)=46, and s=2, find the margin of error at a 90% confidence level Give your…

A:

Q: Consider 2 sorted lists of size 50 and 60 respectively. Find the number of comparisons needed in the…

A: Given  Two sorted list of size 50 and 60 respectively. We need to determine the number of…

Q: An experiment can be a success with the probability p and a failure with the probability 1 - p. The…

A: Let Pn(A) denotes the probability of n trials.Pn,m is exactly m success in ntrials.…

Q: and standard deviation 1.8 ppm. 38 randomly selected large cities mal places where possible. at is…

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

Q: According to the U.S. Department of Agriculture, Alabama egg farmers produce millions of eggs every…

A: Obtain the mean egg production by Alabama farmers. The mean egg production by Alabama farmers is…

Q: g technique. TH nce in the pop

A: The Kruskal-Wallis H test, commonly known as "one-way ANOVA on ranks," is a rank-based…

Q: b) Consider a random sample of 20 observations. The sample variance is 30.5. Construct a 95%…

A: 4. (b) The sample variance is 30.5 and the number of observations is 20.

Q: 4.7. Given: f(x) = e5 5x X! Then for x = 0, 1, 2, ... f(x) is: a. An exponential pdf b. A…

A: 4.7)

Q: INSTRUCTION: Classify the following researches based on the different types of research. (NO NEED…

A: Quantitative :   if information can be expressed in numbers. (something that can be counted)…

Q: correlation coefficient) Let X and Y be random variables of the continuous type having the joint…

A: From the given information, fx,y=3, 0≤y≤x2 and 0≤x≤1 E(X): EX=∫x=01∫y=0x2xfx,ydydx…

Q: A simple random sample from a population with a normal distribution of 97 body temperatures has…

A: Given  Mean=98.8 F  S=0.69 F  No of samples=97 We need to construct 99% confidence interval estimate…

Q: 9) Use a probability tree: 85% of Americans have dental insurance. Of those that have dental…

A: Here, P(dental insurance) =0.85 P(no dental insurance ) =0.15 P( regular check up| insurance ) =0.68…

Q: A county with a large population need to know what the average income is for tax purposes. A simple…

A: Obtain a 95% confidence interval for the average household income in this country. The 95%…

Q: Part: 3/6 Part 4 of 6 (d) Find the probability that the proportion of the sampled adults who drink…

A:

Q: A survey is planned to determine the mean annual family medical expenses of employees of a large…

A: We have given that Standard deviation(σ) = $380Margin of error (E) = $40Significance level (α) = 1 -…

Q: For the decision rule: Reject the null hypothesis if the computed statistic _______ positive…

A: It is given that the statement about to the decision rule of rejecting the null hypothesis. Here,…

Q: A professor had students keep track of their social interactions for a week. The number of social…

A: Given  A tabular colum containing data of social interaction for a week.we need to determine the…

Q: Which of the following indicates an out-of- control condition? a. A trend of 5 points in an upward…

A: Option b is the correct answer.

Q: Define variability and explain why it is an important concept in statistics. What are the three…

A: Variability is a measure of spread or dispersion. In a way it tell us the spread of each data point…

Q: Which of the following is not a requirement for the two sample test of means for independent…

A: 2 sample test of means not have a requirement equal population standard deviation

Q: Suppose you are testing Ho : μ = 104 against Ha μ< 104. From an SRS of 70 individuals, you compute =…

A: It is interpreted that, the study involves 70individuals (i.e., n sample size=70). And the sample…

Q: When dragons on planet Pern lay eggs, the eggs are either green or yellow. The biologists have…

A: Given datan=67p=37%

Q: Coffee: The National Coffee Association reported that 65% of U.S. adults drink coffee daily. A…

A: (c) The objective is to determine the probability that more than 66% of the sampled adults drink…

Q: The assets (in billions of dollars) of the four wealthiest people in a particular country are 47,…

A: The assets of the four wealthiest people in a particular country are  47,27,22,11

Q: Answer the following for the probability distribution f(x) = (2x + 1) X= 0, 1, 2, 3 a. Find the mean…

A: Given function is f(x)=116(2x+1)   X=0,1,2,3

Q: Question The students in a high school took the SAT evaluation Test. A sample of 6 students were…

A: Given that  SAT scores  400 430 380 320 500 430 We have to find Mode and sample mean:

Q: approximately normally distributed with a mean of 54.4 inches, and standard deviation of 1.6 inches.…

A: Given that.   X~N( μ , ?^2 )   μ=54.5     , ?=1.6   Z-score =( x - μ )/?

Q: The mean value of land and buildings per acre from a sample of farms is ​$1600​, with a standard…

A:

Q: 4. Assume the below life table was constructed from following individuals who were diagnosed with a…

A: The Survival probability for the time t+1 is defined using the Kaplan-Meir approach is given as:…

Q: Next question Assume that a randomly selected subject is given a bone density test. Those test…

A:

Q: Is it possible for the standard deviation of a dataset to be larger than its variance? Explain…

A: The objective is to state whether it is possible for the standard deviation of a dataset to be…

Q: Which one of the following is not a valid number for a probability? O a. 0.32 Ob. 17% O c. 0 Od.…

A: To find: Which one of the following in not a valid number for a probability.

Q: The variation. curve describes are due to: a. Nonassignable causes b. Catastrophic failure c.…

A: We know that in general, the random things follow Normal distribution for e.g.-if you collect…

Q: Question In a recent marathon with two races, 24,521 people in the first race finished and 283…

A: Given: For First Race: n1 = 24,521 + 283 = 24804 x1 =  24,521 For Second Race: n2 = 12,853 +152 =…

Q: X₁, X2,..., X5 be a random sa test for

A: Given: X1,X2,...,X5 be the random sample from beta. To find UMP.

Q: Question: The students in a high school took the SAT evaluation Test. A sample of 6 students were…

A:

Q: P(1)= (Round to three decimal places as needed.)

A:

Q: Need this urgently please

A:

Q: a. Which of the following best represents a set of numerical data? mean proportion variance range…

A: Given, a. Which of the following best represents a set of numerical data?meanproportionvariancerange

Q: udy was made on the amount of converted sugar in a certain process at various temperatures. The data…

A:

Q: The probability density for the random rolling amplitudes of a ship has the form (Rayleigh's law)…

A:

Q: In a jar of ten beads, seven are red and three are blue. A bead is drawn from the jar five times…

A:

Q: Which of the following tests assume some knowledge of a known distribution? a. Mann-Whitney b.…

A: Here we have given the question about the tests. We have to identify which of the following tests…

Q: . Suppose we wish to test Ho: μ≤50 versus H1>50. What will result if we conclude that the mean is…

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

Q: On a recent quiz, the class mean was 71 with a standard deviation of 2.5. Calculate the z-score (to…

A: Given,mean(μ)=71standard deviation(σ)=2.5raw score(X)=70

Q: b. The following statements are true EXCEPT

A: a.) All of these

Q: Assume that random guesses are made for six multiple choice questions on an SAT test, so that there…

A: Given: Number of trials n=6 Probability of success p=0.65

Q: Find the value of the test statistic z using z = The claim is that the proportion of drowning deaths…

A: Given that: Sample size, n = 681 Population proportion, p = 0.25 Sample proportion, p^=0.30