The Amount of Time Necessary for Assembly Line Workers to Complete

question 107

Short Answer

The amount of time necessary for assembly line workers to complete a product is a normal random variable with a mean of 15 minutes and a standard deviation of 2 minutes. So, 90% of the products require more than ________ minutes for assembly.

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Definitions:

Standard Error

The standard deviation of the sampling distribution of a statistic, particularly mean, indicating the variability of an estimate from sample to sample.

Positively Skewed

A description of a distribution of data in which the tail on the right side of the histogram is longer than the left side, indicating that most values are clustered on the left.

Sampling Distribution

The probability distribution of a given statistic based on a random sample, used to estimate the population parameter.

Normal Populations

Populations that follow a normal distribution, where the majority of data points are concentrated around the mean value.