Suppose that the lifetimes of tires of a certain brand are normally distributed with a mean of 74,000 miles and a standard deviation of O miles. These tires come with a 65,000-mile warranty. The manufacturer of the tires can adjust o during the production process, but the adjustment of o is quite costly. The manufacturer wants to set o once and for all so that only 5% of the tires will fail before warranty expires. Find the standard deviation to be set. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place. miles

Q: Chapter 06, Section 6.4, Problem 043 A study has shown that 23% of all college textbooks have a pric...

A:

Q: Consider the data of a businessman that accumulates the daily sales of his restaurant business durin...

A: The data of the daily sales of restaurant for the 10 day is given as: 18,500  23,600  21,210  14,...

Q: A simple random sample of 60 items resulted in a sample mean of 25. The population standard deviatio...

A:

Q: (a) The probability that two randomly selected 1-year-old male chipmunks will live to be 2 years old...

A: here use binomial distribution Each trial is independent Finite number of trial There are two outco...

Q: how can I know this if the samples were: Y= 3,80,80,80,80,80 Y= 45, 48,52,53,57 Question 2 In which ...

A:

Q: Find the relationship between variance and standard deviation. A.(Variance)2 = standard deviation B....

A:

Q: nd the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are ...

A:

Q: 1. Suppose when using the Binomial Theorem an expansion turned out to be the expression as shown bel...

A: Formula for Binomial theorem: a+bn=an+nan-1b+nn-12!an-2b2+nn-1n-23!an-3b3+.....+bn Given expression:...

Q: Lesson 12 Q1 What is the probability that the sum of the faces when rolling a pair of dice is seven...

A: GivenA pair of dice is rolledTotal no. of outcomes = 6×6=36(1,1)(1,2)(1,3)(1,4)(1,5)(1,6)(2,1)(2,2)(...

Q: 1) Given two events A and B: P(A) = .3, p(B) = .5, P(A|B) = .7 Then a) P(A n B) =     b) P(B|A)=

A: GivenP(A)=0.3P(B)=0.5P(A|B)=0.7

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores ar...

A: Solution-: Given: μ=100,σ=15 We find x- value=?  

Q: Derive the moment generating function of X ~ Bi(n, p) and using the MGF compute E[X] and Var[X].

A:

Q: Annual starting salaries for college graduates with degrees in business administration are generally...

A: For the given data, Find the population standard deviation and sample size for given margin of error...

Q: Find the standard deviation, s, of sample data summarized in the frequency distribution table given ...

A: Concentration of all the values around the central value of the given data is known as measures of c...

Q: For this problem, carry at least four digits after the decimal in your calculations. Answers may var...

A:

Q: Scores on ENGDAT exam are normally distributed with a population standard deviation of 5.6. A random...

A:

Q: For the data set 8 7 4 8 6 8 5 9 12 6 5 7 3 7 24 65 4 17 10 5 4 Send data to Excel Part: 0/ 4 Part 1...

A:

Q: Let B be an n-dimensional random vector of zero mean and positive- definite covariance matrix Q. Sup...

A: Given Information: Consider β be an n-dimensional random vector of zero mean and positive definite c...

Q: In Applied Life Data Analysis (Wiley, 1982), Wayne Nelson presents the breakdown time of an insulati...

A: Given,sample size(n)=19

Q: D. Direction: Compute the following probabilities using the standard normal curve. Construct a curve...

A:

Q: Lesson 12 Q7 One card is drawn at random from a pack of 52 cards. What is the probability that the c...

A: We know that.  There are 52 card in the deck in which they divided into two color i.e red(26) and bl...

Q: It has been reported that the variance of the speeds of drivers Turnpike near Somerset, PA is 64 for...

A: From the provided information, Sample size (n) = 50 Sample standard deviation (s) = 10.5 Level of si...

Q: Show that the serial correlation coefficient p is equal to -1, if n = 2, provided the denominator is...

A: Solution:

Q: For this problem, carry at least four digits after the decimal in your calculations. Answers may var...

A: Given,margin of error(E)=0.03α=1-0.80=0.2α2=0.1Z0.1=1.2816      (from Z-table)

Q: Two samples are drawn from two normal population. From the following data test whether the two sampl...

A: There are two independent samples which are sample 1 and sample 2. We have to test whether the two s...

Q: School administrators asked a group of students and teachers which of two school logo ideas, logo A ...

A:

Q: NBC News/Marist sampled 603 likely voters on 10-31-14. They found that 44% said they would vote for ...

A:

Q: If the probability of a bad reaction from a certain injection is 0.001, determine the  chance that o...

A: Given: Probability of a bad reaction is, p= 0.001 Sample size, n=3000

Q: Solve for P(X=0,Y=0).

A: Here given,   2 balls are randomly selected from an urn containing 3 red, 4 blue, and 5 white balls....

Q: С. (x- mean)^2*P(x) x=# hours P(x) x*P(x) x^2*P(x) 1 0.08 0.08 0.79077888 0.08 0.152 0.304 0.6987038...

A: Given : x=# hours P(x) 1 0.08 2 0.152 3 0.212 4 0.18 5 0.16 6 0.052 7 0.02 8 0.1...

Q: What is the probability of an equally likely event? A.zero B.25% C.50% D.100%

A: Here we have to explain the equally likely event 

Q: Determine the appropriate sample size using G*power for a study that will employ independent sample ...

A: From the given information, Significance level, alpha=0.05 Power=0.80 a) Effect size for small effec...

Q: Two random samples were drawn from two normal populations and their values are : A: 66 B : Test whet...

A: Given : At 5% level for v1=10 and v2=8  F0.05=3.36 The null and alternate hypotheses are : Ho: Popul...

Q: The deviation of each observation (x) from the mean of the predictor variable is negative for every ...

A: The mean of the predictor variable is given by the vertical line of x̄. The mean of the response var...

Q: Suppose you carry out a significance test of H0: μ = 8 versus Ha: μ > 8 based on sample size n = 25 ...

A: Given that µ = 8 n = 25 df = n-1 = 25-1= 24  

Q: A. Direction: Read the following statements carefully. Write ND if the statement describes a charact...

A: ND is written if the statement describes a characteristic of a normal distribution and NND is writte...

Q: Let X1,..., Xn an iid random sample from Gamma(a, X). Show that [I-1 X; and E X; are jointly suffici...

A: Given:  random variables Xi (i=1,2,....n) are iid from gamma(α,λ) then to show that ∏Xi and ∑Xi  is ...

Q: A) Which of the following experiments does NOT have equally likely outcomes? A- Choose a number at r...

A: Equally likely outcome : Equally likely outcome means all the outcome should have equal probability....

Q: What percent of the schools have an acceptance rate below 15%? O a) 1% O b) 4% 12% O d) 16%

A: The number of values corresponding to a class or observation is defined as the frequency of that cla...

Q: A real number between 0 and 10 will be picked according to the probability distribution shown in the...

A: given;a real number between 0 and 10 will be picked according to the probability distribution shown ...

Q: (ii) Write the following time series process as a vector-valued process that possesses the Markov pr...

A: @solution:::  

Q: b) The following are the diastolic blood pressure readings (mm Hg) taken from five men and five wome...

A: We assuming that the data constitute independent random samples from normal populations with equal v...

Q: (X1, X2, X3)' be a random sample from N(u, 1). Use the Fisher-Neyman Factorization Theorem to find a...

A:

Q: We are back to our old friends: center, shape, and spread. We won't worry about shape too much today...

A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of suc...

Q: Two cards are selected at random from a box which contains five cards numbered 1, 1, 2, 2, and 3. Le...

A: Given : A box contains five cards numbered 1 , 1, 2 , 2 , 3 i.e N = 5 Two cards are selected at rand...

Q: It is 2075 and Stella, an amateur astronomer, recently was watching rocket launches on a Saturday an...

A: Note: As per our company guidelines we are supposed to answer only first three sub-parts. Kindly rep...

Q: P (-∞ < z < 0) = A.zero B.0.5 C.1 D.2

A: The standard normal variable is z, which follows the normal distribution with the mean of 0 and stan...

Q: Find the value of k for the probability mass function F(x) = k () (4 * ) for x = 0,1,2.

A: The given probability mass function is, Substitute the values of x in given mass function as follow...

Q: Sex education in public schools * Respondents sex Crosstabulation Respondents sex MALE FEMALE Total ...

A:

Q: Example 6. If the cost of making x units is C Rupees where c = 10 + 9x of units with marginal cost b...

A: