What is the likelihood that the sample mean

Assignment Help Basic Statistics
Reference no: EM132384299

PROBLEM 1

A laptop manufacturer finds that the average time it takes an employee to load a laptop with software is 35 minutes with a standard deviation 15 minutes. Suppose you take a random sample of 121 employees. The standard deviation of the sample mean is:

PROBLEM 2

A company that manufactures bookcases finds that the average time it takes an employee to build a bookcase is 10 hours with a standard deviation of 2 hours. A random sample of 64 employees is taken. What is the likelihood that the sample mean will be 9 hours or more?

Reference no: EM132384299

Questions Cloud

What is secondary data and why is it being used : What is secondary data and why is it being used ex: existing data collected by someone else and they are used for convenience and low cost.
Explain the strengths and limitations of utilizing deductive : Describe the four deductive and three inductive arguments and provide. Evaluate and explain the strengths and limitations of utilizing deductive and inductive r
Find the expected value of x : A discrete random variable X has the probability distribution shown in the table: (All calculations must be on EXCEL)
Find the probability that among 16 randomly selected people : Find the probability that among 16 randomly selected people; exactly 4 believe that college is no longer a good investment.
What is the likelihood that the sample mean : A random sample of 64 employees is taken. What is the likelihood that the sample mean will be 9 hours or more?
Tests positive for breast cancer has breast cancer : Compute the probability that a female between the ages of 45 and 55 who tests positive for breast cancer has breast cancer. please place answer in 3 decimal pla
Write out the null and alternative hypotheses : Write out the null and alternative hypotheses for the following hypothetical proposal. Carry out a one-sample Z test to determine significance at the a=0.05
Find the expected value of the proposition : Find the expected value of the proposition. Round your answer to two decimal places. Losses must be expressed as negative values.
What is the probability that both of them scored above : What is the probability that both of them scored above a 1520? Assume that the scores of the two test takers are independent.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Binomial with a correction for continuity

A brokerage survey reports that 40% of all individual investors have used a discount broker (one that does not charge the full commission).

  Procedure that continues to ?ip the coin

Could we use a simpler procedure that continues to ?ip the coin until the last two ?ips are different, and then sets X = 0 if the ?nal ?ip is a head, and sets X = 1 if it is a tail?

  Find the optimal allocation for estimating population mean

A population consists of two strata, H and L, of sizes 100,000 and 500,000 and standard deviations 20 and 12, respectively. A stratified sample of size 100.

  According to the mendelian theory of inherited

according to the mendelian theory of inherited charateristics a cross ferilizatiopn of related species of red and white

  Confidence interval for the true proportion of all e-mail

What is the 99% confidence interval for the true proportion of all e-mail subscribers that opened the e-mail within 24 hours of receiving it?

  Consider an experiment of drawing two cards at random from

1. consider a random experiment of tossing a coin three times.a find the sample space s1if we wish to observe the exact

  Compute sample variance and sample standard deviation

Compute sample mean. Assume that desirable value for this solution has been specified to be 65.0 grams per liter. Compute sample variance and sample standard deviation.

  Let x the number of flaws on the surface of a randomly

let x the number of flaws on the surface of a randomly selected boiler of a certain type have a poisson distribution

  Find the probability of event

A fair dice is rolled twice and the dots on the top face events defined as: A=First roll gives an odd number C=the sum of two rolls is odd. Find the probability of event C using events A and B.

  Classes in mark university

Chapter 10 Data Set 2 contains the population of scores for the 10 other classes in Mark's university. How did Mark's class do?

  To identify the need for services in the coming summer

to identify the need for services in the coming summer months the mayor wants to identify potential high crime areas of

  Critical value for a one-tailed hypothesis test

For a hypothesis comparing two population means, what is the critical value for a one-tailed hypothesis test, using a 5% level of significance level, with both sample sizes equal to 13? Assume the population standard deviations are equal.

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