Reliability Number Calculator

✖The Defective Units here refer to the number of defective objects or units that are considered for sampling.ⓘ Defective Units [D]			+10% -10%
✖The Tested Units refer to the number of units or objects tested for conducting the sampling.ⓘ Tested Units [T_u]			+10% -10%

✖The Reliability Number is the overall consistency of measurement. It increases as the sample size is increased.ⓘ Reliability Number [RN]

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Formula

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Reliability Number

Formula

`"RN" = 100-(("D"/"T"_{"u"})*100)`

Example

`"2"=100-(("98"/"100")*100)`

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Reliability Number Solution

STEP 0: Pre-Calculation Summary

Formula Used

Reliability Number = 100-((Defective Units/Tested Units)*100)
RN = 100-((D/T_u)*100)
This formula uses 3 Variables

Variables Used

Reliability Number - The Reliability Number is the overall consistency of measurement. It increases as the sample size is increased.
Defective Units - The Defective Units here refer to the number of defective objects or units that are considered for sampling.
Tested Units - The Tested Units refer to the number of units or objects tested for conducting the sampling.

STEP 1: Convert Input(s) to Base Unit

Defective Units: 98 --> No Conversion Required
Tested Units: 100 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

RN = 100-((D/T_u)*100) --> 100-((98/100)*100)

Evaluating ... ...

RN = 2

STEP 3: Convert Result to Output's Unit

2 --> No Conversion Required

FINAL ANSWER

2 <-- Reliability Number

(Calculation completed in 00.004 seconds)

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Credits

Created by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

Chandana P Dev has created this Calculator and 500+ more calculators!

Verified by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has verified this Calculator and 700+ more calculators!

< 8 Quality Control in Construction Calculators

Proportion Non-Confirming in Sample

Go Non-Conforming Proportion = Number of Non-Conforming/Number of Items in Sample

Number Non-Confirming in Sample

Go Number of Non-Conforming = Number of Rejected/Number of Sample

Coefficient of Variation

Go Variation Coefficient = Standard Deviation*100/Arithmetic Mean

Number of Units Tested given Reliability Number

Go Tested Units = (100*Defective Units)/(100-Reliability Number)

Reliability Number

Go Reliability Number = 100-((Defective Units/Tested Units)*100)

Number of Defective Units given Reliability Number

Go Defective Units = (100-Reliability Number)*Tested Units/100

Average Proportion Non-Confirming

Go Average Proportion = Number of Rejected/Number of Inspected

Average Non-Conformities in Inspected Unit

Go Average Non-Conformity = Number of Rejected/Unit Numbers

Reliability Number Formula

Reliability Number = 100-((Defective Units/Tested Units)*100)
RN = 100-((D/T_u)*100)

What is Sampling?

In statistics, quality assurance, and survey methodology, sampling is the selection of a subset of individuals from within a statistical population to estimate characteristics of the whole population. The methodology used to sample from a larger population depends on the type of analysis being performed, but it may include simple random sampling or systematic sampling.

What are the major Quality Control Methods Adopted?

The major quality control methods adopted are as follows
1. Inspection: Firstly, it is carried out for the materials of construction for checking their quality and acceptability. later, during the process or during construction.
2. Testing: It is the examination conducted for the material or the product for finding its performance.
3. Sampling: Sampling is a process used in statistical analysis in which a predetermined number of observations are taken from a larger population.

How to Calculate Reliability Number?

Reliability Number calculator uses Reliability Number = 100-((Defective Units/Tested Units)*100) to calculate the Reliability Number, The Reliability Number formula is defined as the overall measurement of consistency or reliability is a measure of how well a product will perform under a certain set of conditions for a specified amount of time. Reliability Number is denoted by RN symbol.

How to calculate Reliability Number using this online calculator? To use this online calculator for Reliability Number, enter Defective Units (D) & Tested Units (T_u) and hit the calculate button. Here is how the Reliability Number calculation can be explained with given input values -> 2 = 100-((98/100)*100).

FAQ

What is Reliability Number?

The Reliability Number formula is defined as the overall measurement of consistency or reliability is a measure of how well a product will perform under a certain set of conditions for a specified amount of time and is represented as RN = 100-((D/T_u)*100) or Reliability Number = 100-((Defective Units/Tested Units)*100). The Defective Units here refer to the number of defective objects or units that are considered for sampling & The Tested Units refer to the number of units or objects tested for conducting the sampling.

How to calculate Reliability Number?

The Reliability Number formula is defined as the overall measurement of consistency or reliability is a measure of how well a product will perform under a certain set of conditions for a specified amount of time is calculated using Reliability Number = 100-((Defective Units/Tested Units)*100). To calculate Reliability Number, you need Defective Units (D) & Tested Units (T_u). With our tool, you need to enter the respective value for Defective Units & Tested Units and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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