Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Much is still to be learned about the relationship between sound frequency and loudness. One way to study this relationship is to have listeners perform

image text in transcribed
Much is still to be learned about the relationship between sound frequency and loudness. One way to study this relationship is to have listeners perform loudness judgments for tones of different frequencies. For each listener, the output of these judgments is a number, measured in sones, that gives the loudness of the tone relative to the loudness of a reference tone. You have in front of you data from an experimental study in which 57 listeners were asked to perform such loudness judgments for tones of various intensities and frequencies. Of these 57 listeners, 19 had normal hearing, 19 used hearing aids, and 19 had some hearing loss at low frequencies (but didn't use hearing aids). Here is a summary of the data obtained for a 50 dB SPL, 500-Hz tone (the data are the sone values corresponding to this tone). Groups Sample Sample Sample Size mean variance Normal hearing 19 2.35 0.3 Hearing aid 19 2.15 0.3 Some hearing loss 19 2.13 0.1 Send data to calculator Send data to Excel Are there differences in the mean sone values for this tone for the populations of listeners with normal hearing, listeners with hearing aids, and listeners with low-frequency hearing loss? We can perform a one-way, independent-samples ANOVA test to answer this question. Such a test uses the following statistic. F= Variation between the samples Variation within the samples For the data summarized above, F ~ 1.22. (a) Give the p-value corresponding to this value of the F statistic. Round your answer to at least three X 5 ? decimal places. (b) Based on these data, and using the 0.05 level of significance, should you conclude that there are Yes No differences in the mean sone values for this tone among the three groups

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access with AI-Powered Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Statistics The Art And Science Of Learning From Data

Authors: Alan Agresti, Christine A. Franklin

3rd Edition

9780321849281, 321755944, 321849280, 978-0321755940

Students also viewed these Mathematics questions