Asked by Timothy Quaye on May 07, 2024
Verified
The average length of time required to complete a college achievement test was found to equal 75 minutes, with a standard deviation of 15 minutes. When should the test be terminated if you wish to allow sufficient time for 90% of the students to complete the test? (Assume that the time required to complete the test is normally distributed.)
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Achievement Test
A test designed to assess a person's knowledge or proficiency in a particular area or subject.
Standard Deviation
The square root of the variance, representing the distribution of a dataset in relation to its mean.
Normally Distributed
Explains a probability distribution where the distribution is balanced on either side of the mean, suggesting that data points near the mean happen more frequently than those far from the mean.
- Ascertain the probability percentages for chosen variables in a standard bell curve.
- Calculate time or value cutoffs for achieving specified coverage probabilities.
Verified Answer
BC
Learning Objectives
- Ascertain the probability percentages for chosen variables in a standard bell curve.
- Calculate time or value cutoffs for achieving specified coverage probabilities.