k BFW Publishers To study vision impairment under the influence of illegal subtances, a group of 54 volunteers were used in a study. The volunteers each completed two tasks: they completed a vision test with and without googly goggles on. Googly goggles simulate the visual impairment that often occurs when a person is under the influence. The order in which they completed the vision tests was determined by a coin toss and the tests, while equally difficult, were different so that the first test did not assist them in earning better scores on the second test. The number of words they could correctly read was noted for each test. The mean difference (with goggles - without goggles) is -10.5 words with a standard deviation of 27.015 words. Do these data provide convincing evidence at the α = 0.05 level that wearing Googly goggles decreases the number of words that can be read, on average? STATE: Ho: Ha Hdiff The evidence for H, is that words words PLAN: Check the 3 correct statement for a paired t-test for a mean difference. Normal/Large Sample: This condition is not met. Random: This condition is met. Normal/Large Sample: a = 54 is large (>30) Random: A random sample of 54 volunteers were selected. Random: This condition is not met. Random: The volunteers were randomly assigned a treatment order. DO: Enter the test statistic to 2 decimal places and enter the P-value to 4 decimal places. (Use technology for the P-value) 1-statistic= P-value= CONCLUDE MacBook A CONCLUDE: Because the P-value a = 0.05, the correct decision is to the null hypothesis. There convincing evidence at the a = 0.05 level that the mean difference (with goggles without goggles) in the number of words that can be read is zero. acBook
k BFW Publishers To study vision impairment under the influence of illegal subtances, a group of 54 volunteers were used in a study. The volunteers each completed two tasks: they completed a vision test with and without googly goggles on. Googly goggles simulate the visual impairment that often occurs when a person is under the influence. The order in which they completed the vision tests was determined by a coin toss and the tests, while equally difficult, were different so that the first test did not assist them in earning better scores on the second test. The number of words they could correctly read was noted for each test. The mean difference (with goggles - without goggles) is -10.5 words with a standard deviation of 27.015 words. Do these data provide convincing evidence at the α = 0.05 level that wearing Googly goggles decreases the number of words that can be read, on average? STATE: Ho: Ha Hdiff The evidence for H, is that words words PLAN: Check the 3 correct statement for a paired t-test for a mean difference. Normal/Large Sample: This condition is not met. Random: This condition is met. Normal/Large Sample: a = 54 is large (>30) Random: A random sample of 54 volunteers were selected. Random: This condition is not met. Random: The volunteers were randomly assigned a treatment order. DO: Enter the test statistic to 2 decimal places and enter the P-value to 4 decimal places. (Use technology for the P-value) 1-statistic= P-value= CONCLUDE MacBook A CONCLUDE: Because the P-value a = 0.05, the correct decision is to the null hypothesis. There convincing evidence at the a = 0.05 level that the mean difference (with goggles without goggles) in the number of words that can be read is zero. acBook
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
Related questions
Question
please answer all parts
Transcribed Image Text:k
BFW Publishers
To study vision impairment under the influence of illegal subtances, a group of 54 volunteers were used in a study. The
volunteers each completed two tasks: they completed a vision test with and without googly goggles on. Googly goggles simulate
the visual impairment that often occurs when a person is under the influence. The order in which they completed the vision tests
was determined by a coin toss and the tests, while equally difficult, were different so that the first test did not assist them in
earning better scores on the second test. The number of words they could correctly read was noted for each test.
The mean difference (with goggles - without goggles) is -10.5 words with a standard deviation of 27.015 words. Do these data
provide convincing evidence at the α = 0.05 level that wearing Googly goggles decreases the number of words that can be read,
on average?
STATE:
Ho:
Ha
Hdiff
The evidence for H, is that
words
words
PLAN: Check the 3 correct statement for a paired t-test for a mean difference.
Normal/Large Sample: This condition is not met.
Random: This condition is met.
Normal/Large Sample: a = 54 is large (>30)
Random: A random sample of 54 volunteers were
selected.
Random: This condition is not met.
Random: The volunteers were randomly assigned a
treatment order.
DO: Enter the test statistic to 2 decimal places and enter the P-value to 4 decimal places. (Use technology for the P-value)
1-statistic=
P-value=
CONCLUDE
MacBook
Transcribed Image Text:A
CONCLUDE:
Because the P-value
a = 0.05, the correct decision is to
the null hypothesis. There
convincing evidence at the a = 0.05 level that the mean difference (with goggles without goggles) in the
number of words that can be read is
zero.
acBook
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