Determine sample variance and sample standard deviation

Assignment Help Basic Statistics
Reference no: EM13950543

Four ball bearings were taken randomly from a production line and their diameters measured. The results were 1.0250, 1.0252, 1.0249 and 1.0249. Determine the average, sample variance and sample standard deviation.

Reference no: EM13950543

Questions Cloud

Compare and contrast the format and uses of formal and : For this discussion, compare and contrast the format and uses of formal and informal reports. Describe an example of either a formal or informal report that you have used or perhaps even written in the workplace, or locate a report via an Internet se..
Create java application containing array that stores 2 value : Create a JApplet with a JButton labeled "Who's number one?". When the user clicks the button, display your favorite sports team. Save the file as JNumberOne.java.
Determine the critical pressure : 1. For the isentropic flow of an ideal gas with constant specific heat ratio k, the ratio of the temperature T* to the stagnation temperature To is T*/To 5 2/(k 1 1). Develop this relationship.
Relevance of policy and evaluation for festival : How do we know whether policy interventions in the realm of events are effective in achieving the desired outcomes and discuss and demonstrate an understanding of basic theoretical concepts and themes in the study and application of event policy a..
Determine sample variance and sample standard deviation : Four ball bearings were taken randomly from a production line and their diameters measured. The results were 1.0250, 1.0252, 1.0249 and 1.0249. Determine the average, sample variance and sample standard deviation.
The layout of your answers should be in paragraph style : Value creation at the global levels begins when an organization transfers a core competence to an overseas market. Discuss this statement in details. The layout of your answers should be in paragraph style.
Function of temperature in the range : 1. Air enters a  horizontal,  well-insulated  nozzle operating at steady state at 12 bar, 500K, with a velocity of 50 m/s and exits at 7 bar, 440 K. The mass flow rate is 1 kg/s. Determine the net force, in N, exerted by the air on the duct in the..
How much do you need to invest today to reach that desired : How much do you need to invest today to reach that desired amount 12 years from now?
Depreciation is a process of valuation : Depreciation is a process of valuation. Depreciation is a process by which a business sets aside cash to replace assets as needed.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Illustrate what is the criterion of realism value

Criterion of realism or Hurwitz. Assume that the payoff from an investment depends on market conditions. Illustrate what is the criterion of realism value.

  In a recent study it was reported that 22 of those who had

in a recent study it was reported that 22 of those who had depression went on to develop dementia compared to only 17

  Find probability of getting at least boys among babies

Find the probability of getting at least 127 boys among 152 babies. Does the result suggest that the YSORT method is effective? Why or why not?

  Evidence to support administrator-s claim

This result prompts a test administrator to claim that standard deviation for eighth graders on examination is less than 29.At a = 0.10, is there sufficient evidence to support administrator's claim?

  Find the probability that company win both contracts

However, if they lose the first contract, the president thinks that the probability of winning the second contract decreases to 48%. What is the probability that they win both contracts?

  Number of hours between break-downs for machines

Given the following number of hours between breakdowns for 4 machines, are the machines significantly different? If so, how are they different? Which machine is the best? Which machine is the worst?

  With 90 confidence levels determine wheter the two samples

set 1 48.2 58.3 62.1 53.8 72.4 56.8 54.1 66.4set 2 44.5 52.1 54.2 46.4 52.7 74.2 51.3 52.4a. with 90

  Opportunities to cross safely by the time

Imagine there are exactly m opportunities to cross safely by the time the nth shock occurs. What is the probability that the mth opportunity is a close call (that it occurs immediately before the nth shock).

  Given that the random variable x has the following

given that the random variable x has the following cumulative distribution function fx 1 - e-x for x gt 0. find the

  Hyopthesis testing of boats

A board of directors at the Anchor Pointe Marina is studying the usage of boats among its members. A sample of 30 members who have bots 10 to 20 feet in length showed that they used their boats an average of 11 days last July.

  List the equally likely outcomes

Bolts are randomly selected until a 5 mm bolt is obtained. The outcomes are the sequences of bolts that can be selected. So one outcome is 1, and the other is 342. List the equally likely outcomes.

  Inferences about two population variances

The standard deviation in the 12-month earnings per share for 10 companies in the airline industry was 4.27 and the standard deviation in the 12-month earnings per share for 7 companies in the automotive industry was 2.27

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