Stereograms Stereograms appear to be composedentirely of random dots. However, they contain separateimages that a viewer can “fuse” into a three-dimensional(3D) image by staring at the dots while defocusing theeyes. An experiment was performed to determine whetherknowledge of the form of the embedded image affectedthe time required for subjects to fuse the images. Onegroup of subjects (group NV) received no information or just verbal information about the shape of the embed-ded object. A second group (group VV) received both verbal information and visual information (specifically, adrawing of the object). The experimenters measured howmany seconds it took for the subject to report that he orshe saw the 3D image. 2-Sample t-Interval for m1 - m2Conf level = 90, df = 70m(NV) - m(VV) interval: (0.55, 5.47)a) Interpret your interval in context.b) Does it appear that viewing a picture of the imagehelps people “see” the 3D image in a stereogram?c) What’s the margin of error for this interval?d) Explain what the 90% confidence level means.e) Would you expect a 99% confidence level to be wideror narrower? Explain.f) Might that change your conclusion in part b? Explain.
Stereograms Stereograms appear to be composedentirely of random dots. However, they contain separateimages that a viewer can “fuse” into a three-dimensional(3D) image by staring at the dots while defocusing theeyes. An experiment was performed to determine whetherknowledge of the form of the embedded image affectedthe time required for subjects to fuse the images. Onegroup of subjects (group NV) received no information or just verbal information about the shape of the embed-ded object. A second group (group VV) received both verbal information and visual information (specifically, adrawing of the object). The experimenters measured howmany seconds it took for the subject to report that he orshe saw the 3D image. 2-Sample t-Interval for m1 - m2Conf level = 90, df = 70m(NV) - m(VV) interval: (0.55, 5.47)a) Interpret your interval in context.b) Does it appear that viewing a picture of the imagehelps people “see” the 3D image in a stereogram?c) What’s the margin of error for this interval?d) Explain what the 90% confidence level means.e) Would you expect a 99% confidence level to be wideror narrower? Explain.f) Might that change your conclusion in part b? Explain.
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section: Chapter Questions
Problem 14CR
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Stereograms Stereograms appear to be composed
entirely of random dots. However, they contain separate
images that a viewer can “fuse” into a three-dimensional
(3D) image by staring at the dots while defocusing the
eyes. An experiment was performed to determine whether
knowledge of the form of the embedded image affected
the time required for subjects to fuse the images. One
group of subjects (group NV) received no information
entirely of random dots. However, they contain separate
images that a viewer can “fuse” into a three-dimensional
(3D) image by staring at the dots while defocusing the
eyes. An experiment was performed to determine whether
knowledge of the form of the embedded image affected
the time required for subjects to fuse the images. One
group of subjects (group NV) received no information
or just verbal information about the shape of the embed-
ded object. A second group (group VV) received both
ded object. A second group (group VV) received both
verbal information and visual information (specifically, a
drawing of the object). The experimenters measured how
many seconds it took for the subject to report that he or
she saw the 3D image.
drawing of the object). The experimenters measured how
many seconds it took for the subject to report that he or
she saw the 3D image.
2-Sample t-Interval for m1 - m2
Conf level = 90, df = 70
m(NV) - m(VV) interval: (0.55, 5.47)
a) Interpret your interval in context.
b) Does it appear that viewing a picture of the image
helps people “see” the 3D image in a stereogram?
c) What’s the margin of error for this interval?
d) Explain what the 90% confidence level means.
e) Would you expect a 99% confidence level to be wider
or narrower? Explain.
f) Might that change your conclusion in part b? Explain.
Conf level = 90, df = 70
m(NV) - m(VV) interval: (0.55, 5.47)
a) Interpret your interval in context.
b) Does it appear that viewing a picture of the image
helps people “see” the 3D image in a stereogram?
c) What’s the margin of error for this interval?
d) Explain what the 90% confidence level means.
e) Would you expect a 99% confidence level to be wider
or narrower? Explain.
f) Might that change your conclusion in part b? Explain.
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