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In statistical tests there are 2 main types of Errors, Type I and Type II. Type 1 errors occur when you reject a null hypothesis that is actually true and is thus refereed to as a false positive. Type II errors are essentially the opposite, accepting a null hypothesis that is false, and is often called a false negative. You can reduce the risk of a type I error by lowering the value of P that you're significance test must return to reject the null, but doing so will increase the chance of a type II error. The only way to reduce both is to increase the entire sample size. Alternatively, in some cases, it may also be possible to lower the standard deviation of the experiment, which would also decrease the risk of type I and type II errors.

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What factor can a researcher control that will reduce the type 1 error?

The significance level can be reduced.


What factor can a researcher control that will reduce the standard error?

In any experimental test there are factors that can contribute to error. For example in a biochemical test if you add the compounds with a faulty pippete then the amount of reagent per sample would vary and that would contribute to a noisy measurement. So by controlling experimental conditions as best as one is able error can be reduced. Never completely eliminated, but managed.


If a researcher fails to reject the null hypothesis and the null hypothesis is not true has the researcher made a correct decision a Type I error or Type II error?

If a researcher fails to reject the null hypothesis when it is actually false, they have made a Type II error. This occurs when the researcher incorrectly concludes that there is not enough evidence to support an alternative hypothesis, despite it being true. In contrast, a Type I error happens when the null hypothesis is rejected when it is actually true.


How can reduce the percentage error?

The larger the sample, the lower the % error.. so to reduce a % error, increase your sample size.


how to decrease margin of error in probability sampling?

With probability sampling you have no control over the units that are sampled. So the only way to reduce the margin of error is to increase the size of the sample.


How to reduce scrap in a machining process?

SEE; poke-yoke (error proofing) process capability statistical process control


Define error control Describe stop and wait error control?

3.a Explain Stop-and-Wait Error Control and Sliding Window Error Control techniques.


How do you reduce systematic error?

Systematic error is the result of complete equilibrium. The method to reduce systematic error is to introduce a proof that demonstrates the group has error in their consensus.


How do you overcome or reduce the problem of random error and systematic error while doing an experiment?

how to reduce the problem of random error and systematic error while doing an experiment


How do you reduce error in measurement?

take reading 4 to 5 times, and take its average this will reduce error


What is the Difference between data link error control and transport layer error control in osi model?

Data link error control checks for error in each router and end-system, but transport layer error control checks for error only at the end-systems.


How do you overcome or reduce the problem of random error and systematic error while doing an experiment-?

You can overcome or reduce the problem of random error and systematic error while doing an experiment by increasing the sample size, which means averaging over a huge number of observations.

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