Question

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 3.4 years, and a standard deviation of 0.9 years.

The 5% of items with the shortest lifespan will last less than how many years?

Give your answer to one decimal place.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Data

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: The diameters of pencils produced by a certain machines are normally distributed with a mean of 0.30...

A: Obtain the standard z-score for the random variable X equals 0.285. The standard z-score for the ran...

Q: An analysis of laboratory data collected with the goalof modeling the weight (in grams) of a bacteri...

A: Least-squares criterion figures out the line that has the smallest sum of squared errors and is the ...

Q: The 90th percentile of the standard normal distribution is 1.645. a. true b, false

A: Let z be the 90th percentile of the standard normal distribution.Let,X be a random variable having s...

Q: The Easy Credit Company report the following table representing a breakdown of customers accounting ...

A: Note: Hey, since multiple subparts are posted, we will answer first three subparts according to our ...

Q: To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course ar...

A: Given data, Subject No of Credits Grade Maths 5 4 Music 3 2 Chemistry 5 2.9 Journalism 5 ...

Q: The Wilson family had 6 children. Assuming that the probability of a child being a girl is 0.5, find...

A: Let n be the number of children's in a family = 6 Let p be the probability of a child being a girl =...

Q: Consider a sample with data values of 10, 20, 12, 17, and 16. Compute the range and interquartile ra...

A: The given sample data values are 10, 20, 12, 17, and 16. Software procedure: Step by step procedure ...

Q: The mean voltage and standard deviation of 5 batteries from each manufacturer were measured. The res...

A:          

Q: b.  What is the cumulative relative frequency for flossing 7 times per week? (ANSWER) %Round to 4 de...

A: b) The formula to obtain cumulative relative frequency is as follow:

Q: Let A and B be two events with probabilities P(A) = 0.6, P(B) = 0.4 and P(A and B) = 0.2. (a) Find P...

A: Given: P(A) = 0.6 P(B) = 0.4 P(A and B) = 0.2 Plug in all the given values, we get  

Q: A researcher is interested in attitudes towards releasing prisoners with Alzheimer's who have a life...

A: Click to see the answer

Q: please see attached

A: Mean: The arithmetic mean (also called the mean) is the most commonly used measure of central tenden...

Q: Finite: permutation, combinition, combinitiories. Monochromatic Tom has the following in his closet:...

A: Introduction: According to the combination rule, if r distinct items are to be chosen from n items w...

Q: 14-please see attached

A: Ratio scale provides the order of the variables. It also provides the difference between the variabl...

Q: New Jersey and Alaska have populations of about 9.0 mil-lion and 738,000, respectively (U.S. Census ...

A: Given information Population of New Jersey = 9 million = 9,000,000 Population of Alaska = 738,000 Ar...

Q: Fill in the P(X = x) values to give legitimate probability distribution for the discrete random vari...

A: Since, the sum of all probabilities of a distribution is equal to 1. That is ∑P(x) = 1

Q: In the Western United States there is a saying, "Whisky is for drinken but water is for fighten!" Wa...

A: For river1 let us have :   r1=c(25.9,32.4,33.1,19.1,17.5,24.9,21.0,45.1,30.8,34.3,27.1,29.1,25.6,31....

Q: 5. A set of final exam scores has a mean of 53 and a standard deviation of 6. The scores are normall...

A: Note : - As per our policy we can answer only one question at a time, please make a new requests for...

Q: In each of the following situations, a random sample must be obtained. Determine whether a cluster, ...

A: Hey there! Thank you for posting the question.  Since you have posted a question with multiple sub-p...

Q: 2. Assume that the length of human forearms is symmetric, unimodal and bell-shaped with mean 12in. a...

A: a. The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the me...

Q: In testing the hypothese H0 : p = 0.4  Ha : p ≠ 0.4 The test statistic is found to be 1.87. What is ...

A: Click to see the answer

Q: calculate the mean and ss for each of the following sample numbers 1,3,4,0

A: Click to see the answer

Q: A new drug to treat psoriasis has been developed and is in clinical testing. Assume that those indiv...

A: Hello, since your question has multiple parts, we will solve first question for you. if you want rem...

Q: ather drops his three children off at the movie theater and give nd on a movie and concession snacks...

A: let X1,x2,x3 be the three children. A father drops his three children off at the movie theater and g...

Q: Statistics Question

A: Let X denote the height of  20 to 29 year old man and Y denote the height of 20 to 29 year old woman...

Q: Can you help me on problem 2 A-C

A: The data shows the years in teaching and ages of 10 random teachers at SFHS. Data is: Years in t...

Q: The personality variable extraversion is normally distributed in the population and has a mean of 10...

A: Click to see the answer

Q: A normal distribution has a mean of m= 90 and a standard deviation of 15. For each of the following ...

A: mean m= 90 and  standard deviation=15 TO FIND: For each of the following scores, indicate whether th...

Q: See image below

A: Note: Hey, since there are multiple questions posted, we will answer first question. If you want any...

Q: What is the negation for everyone failed the quiz today?

A: Click to see the answer

Q: Find each of the following probabilities for a normal distribution. a. p(-1.80<z<0.20) b. p(-0...

A: Click to see the answer

Q: A coffee connoisseur claims that he can distinguish between a cup of instant coffee and a cup of per...

A: (i) Obtain the probability that claim will be accepted if he correctly identifies at least 5 of the ...

Q: If 242x = 10122three, find the base x.x =

A: Solution: Given that

Q: Which of the following alternative hypotheses make a hypothesis test one-tailed? Select all that app...

A: Alternative hypothesis:  

Q: A random sample of 10 subjects have weights with a standard deviation of 10.5816 kg. What is the var...

A: Here,we have 10 subjects with measurements from weights having standard deviation,sd=10.5816 kg. We ...

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 1...

A: From the provided information, Mean (µ) = 100 minutes Standard deviation (σ) = 10 minutes Let X be a...

Q: Assume researchers are trying to find out the mean concentration levels of a specific drug in a popu...

A: Given data: Sample size, n = 30 Sample mean concentration, x¯=6.7 mcg/ml Sample standard deviation, ...

Q: 12-please see attached I put in answers, please double check :) thank you!

A: A bimodal distribution is a distribution which has two different modes. Personality, Job satisfactio...

Q: How many outcomes would there be in the sample space for flipping 6 coins?

A: If a coin is tossed, then the outcomes are head or tail.

Q: What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.12 : Does...

A: Given information : Sample mean for manufactures A , x̅A = 142 Sample mean for manufactures B , x̅B ...

Q: Find the sample variance and standard deviation. 19, 13, 2, 9, 11 O

A: 19 361 13 169 2 4 9 81 11 121

Q: Following are the playback times (in hours) for a sample of 20 MP3 players. 10, 15, 21, 21, 23, 23, ...

A: Given information- We have given a data set- X – 10, 15, 21, 21, 23, 23, 24, 26, 27, 30, 30, 31, 37,...