Problem 4: Do Babies Prefer Speaking or Singing? Psychologists in Montreal and Toronto conducted a study to determine whether babies prefer singing or speech. Forty-eight infants between the ages of 4-13 months were exposed to both singing and speech by the same woman. Interest in each sound was measured by the amount of time (in seconds) the baby looked at the woman while she made noise. The mean time while speaking was 66.97 with a standard deviation of 43.42, and the mean time while singing was 56.58 with a standard deviation of 31.57. The mean of the differences was 10.39 more seconds for the speaking treatment with a standard deviation of 55.37 seconds. Perform the appropriate test to determine if this is sufficient evidence to conclude that babies have a preference (either way) between speaking and singing.
Problem 4: Do Babies Prefer Speaking or Singing? Psychologists in Montreal and Toronto conducted a study to determine whether babies prefer singing or speech. Forty-eight infants between the ages of 4-13 months were exposed to both singing and speech by the same woman. Interest in each sound was measured by the amount of time (in seconds) the baby looked at the woman while she made noise. The mean time while speaking was 66.97 with a standard deviation of 43.42, and the mean time while singing was 56.58 with a standard deviation of 31.57. The mean of the differences was 10.39 more seconds for the speaking treatment with a standard deviation of 55.37 seconds. Perform the appropriate test to determine if this is sufficient evidence to conclude that babies have a preference (either way) between speaking and singing.
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Transcribed Image Text:Problem 4: Do Babies Prefer Speaking or Singing?
Psychologists in Montreal and Toronto conducted a study to determine whether babies prefer singing
or speech. Forty-eight infants between the ages of 4-13 months were exposed to both singing and
speech by the same woman. Interest in each sound was measured by the amount of time (in seconds)
the baby looked at the woman while she made noise. The mean time while speaking was 66.97 with
a standard deviation of 43.42, and the mean time while singing was 56.58 with a standard deviation
of 31.57. The mean of the differences was 10.39 more seconds for the speaking treatment with a
standard deviation of 55.37 seconds. Perform the appropriate test to determine if this is sufficient
evidence to conclude that babies have a preference (either way) between speaking and singing.
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