20 studentS who nad recently taken eleme statistics yielded the following Infol calculator owned. ( Texas Instruments, H SHSCS ТHTHC HSSHT стнтс (a) Estimate the true proportion of all such students who own Texas Instruments calculator. (b) Of the 5 students who owned a TI calculator, 3 had graphing calculators. Estimate the proportion of students who do not own a TI graphing calculator.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A sample of 20 students who had recently taken elementary statistics yielded the following information on brand of calculator owned. (T = Texas Instruments, H = Hewlett Packard, C = Casio, S = Sharp):
S H SCST Η ΤΗ C
HSSH тстнт с
(a) Estimate the true proportion of all such students who own a Texas Instruments calculator.
(b) Of the 5 students who owned a TI calculator, 3 had graphing calculators. Estimate the proportion of students who do not own a TI graphing calculator.
Transcribed Image Text:A sample of 20 students who had recently taken elementary statistics yielded the following information on brand of calculator owned. (T = Texas Instruments, H = Hewlett Packard, C = Casio, S = Sharp): S H SCST Η ΤΗ C HSSH тстнт с (a) Estimate the true proportion of all such students who own a Texas Instruments calculator. (b) Of the 5 students who owned a TI calculator, 3 had graphing calculators. Estimate the proportion of students who do not own a TI graphing calculator.
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