Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Find the probabilities values based on normal distribution.

A light bulb manufacturer claims that their bulbs have a mean life-span of 720 hours with a standard deviation of 80 hours. What is the likelihood that the mean life-span of a sample of 64 at random selected bulbs will exceed 727 hours?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M923055

Have any Question? 


Related Questions in Statistics and Probability

Examine the history of american party politics from the

Examine the history of American party politics from the Great Depression through the 1990s. Trace the evolution of the major political parties, their policies, and their constituencies during this period.

Mimi joined umuc basketball team since summer 2016 on

Mimi joined UMUC basketball team since summer 2016. On average, she is able to score 30% of the field goals. Assume she tries 15 field goals in a game. (a) Let X be the number of field goals that Mimi scores in the game. ...

Suppose you have a stock portfolio where 28 of the stocks

Suppose you have a stock portfolio where 28% of the stocks earned a return of 12.2%, 12% earned a return of 15.1%, 24% of the stocks earned a return of 0%, 18% of the stocks earned a return of -1.5%, and 18% of the firms ...

1 true or false justify for

1. True or False. Justify for fullcredit. (a) A is an event, and Ac is the complement of A, then P(A AND Ac ) =0. (b) If the variance of a data set is 0, then all the observations in this data set must bezero. (c) If a 9 ...

Assume the random variable x is normally distributed with

Assume the random variable x is normally distributed with mean mu = 85 and standard deviation sigma =4. Find the indicated probability. P(x

During a certain week the mean price of gas was 2709 per

During a certain week the mean price of gas was $2.709 per gallon. A random sample of 35 gas stations is drawn from this population. What is the probability that the mean price for the sample was $2.697 and $2.716 that w ...

Hello kitty company claims that the proportion of its

Hello Kitty Company claims that the proportion of its employees investing in individual investment accounts is higher than national proportion of 50%. A survey of 100 employees in Hello Kitty Company indicated that 58 of ...

The department of education would like to determine if

The Department of Education would like to determine if there are gender differences in the performance of twins on the state mandated mathematics examination. As a result, they have collected data on twelve sets of twins ...

Assume that you want to test the claim that the paired

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is μd = 0. Compute the value of the t test statistic. Round intermediate calculations to four decima ...

1 under what conditions is the median a more meaningful

1. Under what conditions is the median a more meaningful measure of central tendency than the mean? 2. Why do researchers prefer the standard deviation as a measure of variability over the range?

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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