Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

The life span of battery is normally distributed, with mean of 2400 hours and standard deviation of 40 hours. What percent of batteries have the life span that is more than 2470 hours? Would it be unusal for a battery to have life span that is more than 2470 hours? Describe your reasoning

What percent of batteries have a life span which is more than 2470 hours

Approximately ......% of batteries have life span which is more than 2470 hours

Would it be unusal for a battery have a life span that is more than 2470 hours? Describe your reasoning

a. It is unusal  for battery to have life span that is more than 2470 hours because the z-score I s in 2 standard deviations of mean.

b. It is unusal  for battery to have life span that is more than 2470 hours because the z-score Is not in 2 standard deviations of mean.

C. It isn't unusal for battery to have life span that is more than 2470 hours because the z-score Isn't within 2 standard deviations of mean.

d. It isn't unusal for battery to have life span that is more than 2470 hours because the z-score Is  within 2 standard deviations of mean.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921599

Have any Question? 


Related Questions in Statistics and Probability

Discuss how the concept of behavioral variability relates

Discuss how the concept of behavioral variability relates to the following topics: a. the research questions that interest behavioral researchers b. the design of research studies c. the measurement of behavior d. the an ...

Suppose that x is a continuous random variable with pdf fxx

Suppose that X is a continuous random variable with pdf fx(x) = (lambda/2)e-lambda(abs(x)) for -infinity (question also attached for clarity)

Imagine that you are interested in the effects of

Imagine that you are interested in the effects of background music on people's performance at work. Design an experiment in which you test the effects of classical music (played at various decibels) on employees job ...

1 if the independent variable has absolutely no effect on

1. If the independent variable has absolutely no effect on the dependent variable, will the means of the experimental conditions be the same? Why or why not? 2. An ANOVA for a one-way design partitions the total variance ...

Imagine that you predicted a moderate correlation between

Imagine that you predicted a moderate correlation between people's scores on a measure of anxiety and the degree to which they report having insomnia. You administered measures of anxiety and insomnia to a sample of 30 p ...

Wat were the key political features of the roman republic

What were the key political features of the Roman Republic? How and why did this system of government collapse? Does our republic share any of the weaknesses of the Roman Republic?

Consider the following game a fair die is rolled if the

Consider the following game. A fair die is rolled. If the outcome is 4, then the game ends and you win 0. If the outcome is not 4, then you have the option of either stopping the game and receiving an amount equal to tha ...

Under what conditions is a grouped frequency distribution

Under what conditions is a grouped frequency distribution more useful as a means of describing a set of scores than a simple frequency distribution? Why do researchers often add relative frequencies to their tables?

In a normal distribution what percentage of scores fall

In a normal distribution, what percentage of scores fall between -1 and +1 standard deviations from the mean? Between the mean and -2 standard deviations ? Between the mean and +3 standard deviations?

1 what does the reliability coefficient of a measure

1. What does the reliability coefficient of a measure indicate if it is .60? .OO? 1.00? 2. What does a correlation coefficient tell us? Why are correlation coefficients useful when assessing reliability? 3. What are the ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen