Independent-samples t-test. A psychologist studied the nature of sounds generated during eating. Peak loudness was measured (in decibels) for a sample of participants who chewed potato chips with an open-mouth and another group who did closed-mouthed chewing of potato chips. Is there a significant difference in the peak loudness based on how one chews? Summary values are given below. Test with a = .01. Open Mouth M = 68 Closed Mouth M = 49 %3D n = 10 n = 10 S = 13 S= 16 a. Conduct a complete hypothesis test b. Construct a 95% confidence interval for the difference in mean peak loudness. c. Give a full APA-style write up of your results

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2. Independent-samples t-test. A psychologist studied the nature of sounds generated
during eating. Peak loudness was measured (in decibels) for a sample of participants who
chewed potato chips with an open-mouth and another group who did closed-mouthed
chewing of potato chips. Is there a significant difference in the peak loudness based on
how one chews? Summary values are given below. Test with a =
.01.
Оpen Mouth
М 3 68
Closed Mouth
M = 49
n = 10
n = 10
S = 13
S = 16
a. Conduct a complete hypothesis test
b. Construct a 95% confidence interval for the difference in mean peak loudness.
c. Give a full APA-style write up of your results
Transcribed Image Text:2. Independent-samples t-test. A psychologist studied the nature of sounds generated during eating. Peak loudness was measured (in decibels) for a sample of participants who chewed potato chips with an open-mouth and another group who did closed-mouthed chewing of potato chips. Is there a significant difference in the peak loudness based on how one chews? Summary values are given below. Test with a = .01. Оpen Mouth М 3 68 Closed Mouth M = 49 n = 10 n = 10 S = 13 S = 16 a. Conduct a complete hypothesis test b. Construct a 95% confidence interval for the difference in mean peak loudness. c. Give a full APA-style write up of your results
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