Answer:
B
Explanation:
It allows the police to perform unwarned interrogations. (That is so intresting to me!)
In the confidence interval method the sample data must come from a population that is normally distributed with no outliers.
A confidence interval is a range of values derived from observable data at a desired level of confidence that may include the parameter's true value. The confidence level, such as a 95% confidence level, refers to the accuracy of the estimating process rather than the degree of assurance that the computed confidence interval accurately represents the true value of the parameter under investigation. Confidence intervals are typically written as (some value) ± (a range). The range can be expressed as a percentage or as a real amount. The equation used to determine the confidence interval varies depending on which standard deviation is known.
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This technique is known as Foot-in-the-door phenomenon.
Foot-in-the-door phenomenon is a way of having a person to furnish or follow a big request with the aid of using to begin with making small or modest requests.
The approach is primarily based totally at the good judgment that if a respondent (the individual being requested) can furnish an preliminary small or modest request, then the respondent might be maximum probable to later furnish a bigger request that he/she (the respondent) might now no longer have granted if requested outright (with out being approached with small requests first).
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