Answer:
H0 : μ1 - μ2 = 0
H1: : μ1 - μ2 ≠ 0
we reject the Null and we conclude that babies prefer actual speaking to humming.
Step-by-step explanation:
H0 : μ1 - μ2 = 0
H1: : μ1 - μ2 ≠ 0
Mean difference, d = 27.79
Standard deviation of difference, Sd = 63.18
Sample size, n = 50
The test statistic :
d / (Sd / √n)
Test statistic :
27.79 / (63.18 / √50)
27.79 / 8.9350012
= 3.11
Using the Test statistic score, we can obtain the Pvalue
Using the standard normal table ;
Pvalue = P(x<-Z or x>Z) = 0.0018709
Pvalue is very low
Pvalue < α ; Hence, we reject the Null and we conclude that babies prefer actual speaking to humming.
Answer:
The new cost is $ 2.34 and sales tax is .14. Total cost is $2.48
Step-by-step explanation:
1.80 x 1.3 = 2.34
2.34 x .06 = .14
Add the two together for the total
Answer:
the answer is 0
Step-by-step explanation:
The answer is C. If you substitute x for 6 and , the equation looks like this:
2(1+6)>5+8
Solve.
2(7)>13
14>13
Since 14 is greater than 13, the values make the statement true
Answer:
The answer is below!!
Step-by-step explanation:
The formula used to find the area of a circlular sector - a pie-shaped part of a circle. ... π. 4. 2. ·. 86. 360. = 12.01. What the formulae are doing is taking the area of the whole ... So for example, if thecentral angle was 90°, then the sector would have an area equal to one ... r is the radius of the circleof which the sector is part.
Hope I Helped!!
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