Percentage of flashlights will have life sixty six hours

Assignment Help Basic Statistics
Reference no: EM13144685

The flashlight batteries produced by Manufacturer X are known to have a mean life of 60 hours, with a standard deviation of 4 hours. At least what percentage of flashlights will have a life of 54 to 66 hours?

Reference no: EM13144685

Questions Cloud

Proper accounting treatment : Discuss the proper accounting treatment, including any required disclosures, for each situation. Give the rationale for your answers.
What is the new temperature in celcius : A balloon has a volume of 3.00 liters and a temperature of 56.0 celcius.if the volume increases to 7.00 liters, what is the new temperature in celcius?
Explain what are the molar enthalpy and total enthalpy : five grams of the specified pure solvent is placed is placed in a variable volume piston. What are the molar enthalpy and total enthalpy of the pure system when 50% and 75% have been evaporated at
Which part of dna carries the genetic information : Which part of DNA carries the genetic information, the nitrogen bases, the phosphate or the sugar?
Percentage of flashlights will have life sixty six hours : The flashlight batteries produced by Manufacturer X are known to have a mean life of 60 hours, with a standard deviation of 4 hours. At least what percentage of flashlights will have a life of 54 to 66 hours?
Determine the maturity value of the note : Determine the maturity value of the note. Journalize the entry to record the receipt of the payment of the note at maturity.
Compare respiration and photosynthesis : compare respiration and photosynthesis according to organelles, organelle structures, stages involved, reactants, products, energy source, occurence in plants, occurence in animals.
How many liters of gasoline would you need : In Europe, gasoline efficiency is measured in km/L . If your car's gas mileage is 30.0 miles/gal, how many liters of gasoline would you need to buy to complete a 284- km trip in Europe?
What are prokaryotes : What are prokaryotes, what are they like, and when did they arise?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Domain and lagrange multipliers

State the largest possible domain for the definition of the function. f(x,y) = cube-root(y^2-x)

  Comprise the decision you made based on statistical data

Note down a research that requires a decision making with probabilities.

  Calculate probability for average sat score for students

Suppose that a group of 48 students who took the SAT was chosen. If you wanted to calculate a probability for the average SAT score for these 48 students, what is the standard error.

  Perform a one-tailed hypothesis test

Conduct a one-tailed hypothesis test given the information below. A certain brand of fluorescent light tube was advertised as having an effective life span before burning out of 4000 hours.

  Optimize a schedule of events and reduce lost productivity

Apply Scheduling Theory in order to optimize a schedule of events and reduce lost productivity

  Confidence interval-state education agency

A state education agency designs and administers high school proficiency exams. Historically, time to complete the exam was an average of 120 minutes.

  Determining non parametric tests

Assume that each of the following studies cannot be analyzed using a parametric procedure. For each of the following studies (below), indicate the appropriate nonparametric procedure, and explain why you chose it.

  Decision criterion-alterntive for optimistic decision maker

On the other hand, if the market is unfavorable. ken will suffer a loss of $200.000. But ken has always been a very optimistic decision maker.

  Evidence to reject the directors claim

A job placement director claims that the average starting salary for nurses is 24,000.A sample of 10 nurses' salaries has a mean of 23, 450 and a standard deviation of 400. Is there enough evidence to reject the director's claim at 0.05 level of s..

  Find project-s net present value if required rate is given

An additional $3,000 of net working capital will be required throughout the life of the project. What is the project's net present value if the required rate of return is 11 percent?

  Level of confidence-test the advisors

The membership for the club this year isobserved to be 14 freshman, 19 sophomores, 51 Juniors and 16Seniors. At 95% level of confidence, test the advisors belief..

  State null and the alternative hypotheses

Give an example of a hypothesis test. State what the Null and the Alternative hypotheses.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd