This Exercise Is Based on the Following Information, Gathered from Student

question 174

Multiple Choice

This exercise is based on the following information, gathered from student testing of a statistical software package called MODSTAT. Students were asked to complete certain tasks using the software, without any instructions. The results were as follows. (Assume that the time for each task is normally distributed.) Assuming that the time it takes a student to complete each task is independent of the others, find the probability that a student will take at least 10 minutes to complete each of Tasks 1 and 2. Round your answer to four decimal places. $\begin{array} { | l | l | l | } \hline \text { Task } & \begin{array} { l } \text { Mean Time } \\\text { (minutes) }\end{array} & \begin{array} { l } \text { Standard } \\\text { Deviation }\end{array} \\\hline \text { Task 1: Descriptive Analysis of Data } & 11.4 & 5.0 \\\hline \text { Task 2: Standardizing Scores } & 11.2 & 8.0 \\\hline \text { Task 3: Poisson Probability Table } & 7.3 & 3.9 \\\hline \text { Task 4: Areas Under Normal Curve } & 9.1 & 5.5 \\\hline\end{array}$

• A)0.3425
• B) 0.3405
• C) 0.6595
• D) 0.3415
• E) 0.6585

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Definitions:

Chlamydia

A sexually transmitted infection caused by the bacterium Chlamydia trachomatis, often asymptomatic but treatable with antibiotics.

Gonorrhea

A bacterial infection that is sexually transmitted and can infect the genitals, rectum, and throat.

Bacteria

Microscopic, single-celled organisms that inhabit virtually all environments, including soil, water, organic matter, and the bodies of plants and animals.

Ectopic Pregnancy

A pregnancy in which the fertilized ovum is implanted in any tissue other than the uterine wall. Most ectopic pregnancies occur in the fallopian tubes. Also known as a tubal pregnancy.