It is believed that 11% of all Americans are left-handed. A college needs to know how many left-handed desks to place in the big lecture halls being constructed on its campus. In a random sample of 210 students from that college, whether or not a student was left-handed was recorded for each student. The college wants to know if the data provide enough evidence to show that students at this college have a higher percentage of left-handers than the general American population? State the random variable, population parameter, and hypotheses. State the Type I and Type II errors in the context of this problem.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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ISBN:9780547587776
Author:HOLT MCDOUGAL
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Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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d) A Type I error in the context of this problem would be:
O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really
11%.
O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really
lower than that.
O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really
higher than that.
O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really
different from that.
O Failing to reject that the % of all students from that college that are left-handed is 11% when the %
is really 11%.
O Failing to reject that the % of all students from that college that are left-handed is 11% when the %
is really lower than that.
O Failing to reject that the % of all students from that college that are left-handed is 11% when the %
is really higher than that.
Failing to reject that the % of all students from that college that are left-handed is 11% when the %
is really different from that.
e) A Type II error in the context of this problem would be:
O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really
11%.
O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really
lower than that.
O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really
higher than that.
O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really
different from that.
O Failing to reject that the % of all students from that college that are left-handed is 11% when the %
is really 11%.
O Failing to reject that the % of all students from that college that are left-handed is 11% when the %
is really lower than that.
O Failing to reject that the % of all students from that college that are left-handed is 11% when the %
is really higher than that.
Failing to reject that the % of all students from that college that are left-handed is 11% when the %
is really different from that.
Transcribed Image Text:d) A Type I error in the context of this problem would be: O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really 11%. O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really lower than that. O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really higher than that. O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really different from that. O Failing to reject that the % of all students from that college that are left-handed is 11% when the % is really 11%. O Failing to reject that the % of all students from that college that are left-handed is 11% when the % is really lower than that. O Failing to reject that the % of all students from that college that are left-handed is 11% when the % is really higher than that. Failing to reject that the % of all students from that college that are left-handed is 11% when the % is really different from that. e) A Type II error in the context of this problem would be: O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really 11%. O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really lower than that. O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really higher than that. O Rejecting that the % of all students from that college that are left-handed is 11% when the % is really different from that. O Failing to reject that the % of all students from that college that are left-handed is 11% when the % is really 11%. O Failing to reject that the % of all students from that college that are left-handed is 11% when the % is really lower than that. O Failing to reject that the % of all students from that college that are left-handed is 11% when the % is really higher than that. Failing to reject that the % of all students from that college that are left-handed is 11% when the % is really different from that.
It is believed that 11% of all Americans are left-handed. A college needs to know how many left-handed
desks to place in the big lecture halls being constructed on its campus. In a random sample of 210 students
from that college, whether or not a student was left-handed was recorded for each student. The college
wants to know if the data provide enough evidence to show that students at this college have a higher
percentage of left-handers than the general American population? State the random variable, population
parameter, and hypotheses. State the Type I and Type II errors in the context of this problem.
Transcribed Image Text:It is believed that 11% of all Americans are left-handed. A college needs to know how many left-handed desks to place in the big lecture halls being constructed on its campus. In a random sample of 210 students from that college, whether or not a student was left-handed was recorded for each student. The college wants to know if the data provide enough evidence to show that students at this college have a higher percentage of left-handers than the general American population? State the random variable, population parameter, and hypotheses. State the Type I and Type II errors in the context of this problem.
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