Question
In: Math
A researcher would like to determine whether an over-the-counter herbal nasal spray has an effect on...
A researcher would like to determine whether an over-the-counter herbal nasal spray has an effect on mental alertness for infants. A sample of n = 16 infants is obtained, and each baby is given a standard dose of the spray one hour before being tested for mental alertness. For the general population of infants, scores on a mental alertness screening test are normally distributed with μ = 60. The infants in the sample had an average score of M = 56.5 and an s = 8.
Can the researcher conclude that scores on the screening test are significantly different after administering the spray? Use a two-tailed test with α = .05. Be sure to state your null hypothesis, a decision about that null hypothesis, and a conclusion explaining your results with an APA format statement. Calculate Cohen’s d if necessary.
Solutions
milcah answered 4 months agoRelated Solutions
A researcher would like to determine whether an over-the-counter herbal nasal spray has an effect on...
A researcher would like to determine whether an
over-the-counter herbal nasal spray has an effect on mental
alertness for infants. A sample of n = 18 infants is obtained, and
each baby is given a standard dose of the spray one hour before
being tested for mental alertness. For the general population of
infants, scores on a mental alertness screening test are normally
distributed with μ = 60. The infants in the sample had an average
score of M =...
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A researcher would like to determine if relaxation training will affect the number of headaches for...
A researcher would like to determine if relaxation training will
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level of...
A researcher would like to determine if relaxation training will affect the number of headaches for...
A researcher would like to determine if relaxation training will
affect the number of headaches for chronic headache sufferers. For
a week prior to training, each participant records the number of
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and for the week following training the number of headaches is
again measured. The change in number of headaches before and after
training is as follows (minus signs indicate a reduction from time
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Difference scores: -5 -1 ...
A researcher would like to determine if relaxation training will affect the number of headaches for...
A researcher would like to determine if relaxation training will
affect the number of headaches for chronic headache sufferers. For
a week prior to training, each participant records the number of
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hypothesis for this experiment?...
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