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cricket20 [7]
3 years ago
12

The mean crying time of infants during naptime at a local preschool is 12 mins. The school implements a new naptime routine in a

sample of 25 infants and records an average crying time of 8 ± 4.6 (M ± SD) minutes. Test whether this new naptime routine reduced crying time at a 0.05 level of significance.A) The new naptime routine significantly reduced crying time, t(24) = ?4.35, p <0.05.B) The new naptime routine did not reduce crying time, t(24) = ?4.35, p < 0.05.C) The new naptime routine did not reduce crying time, t(24) = 0.92, p > 0.05.D) The new naptime routine significantly reduce crying time, t(24) = 0.92, p < 0.05.
Mathematics
1 answer:
love history [14]3 years ago
7 0

Answer:

Step-by-step explanatio n: ummmoirnd iehcn

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The area of this rectangle is 165 sq meters the width is 22 meters what’s is the perimeter?
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59 meters

Step-by-step explanation:

A=L*W

165=L*22

L=165/22=7.5

7.5=L

P=L+L+W+W

7.5+7.5+22+22=59


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How does the multiplicity of a zero affect the graph of the polynomial function?
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Answer:

The multiplicity of a root affects the shape of graph of a polynomial. If a root of a polynomial has odd multiplicity, the graph will cross the x-axis at the root. If a root of a polynomial has even multiplicity, the graph will touch the x-axis at the root but will not cross the x-axis

Step-by-step explanation:

Tbh I don't know the answer I just hope this helps

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