Answer:
Step-by-step explanation:
We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean
For the null hypothesis,
µ = 152.5
For the alternative hypothesis,
µ ≠ 152.5
This is a two tailed test.
Since no population standard deviation is given, the distribution is a student's t.
Since n = 231
Degrees of freedom, df = n - 1 = 231 - 1 = 230
t = (x - µ)/(s/√n)
Where
x = sample mean = 148.9
µ = population mean = 152.5
s = samples standard deviation = 27.4
t = (148.9 - 152.5)/(27.4/√231) = - 2
We would determine the p value using the t test calculator. It becomes
p = 0.047
Since alpha, 0.05 > thanthere sufficient evidence to conclude that the self-efficacy of adults who have experienced childhood trauma differs from that in the general population of individuals the p value, 0.047, then we would reject the null hypothesis. Therefore, At a 5% level of significance, there is sufficient evidence to conclude that the self-efficacy of adults who have experienced childhood trauma differs from that in the general population of individuals
Answer:
Z = 102°
Step-by-step explanation:
Given:
X = 54
Y = 24
Required:
Z
Sum of all three interior angles of a triangle = 180°
Therefore,
X + Y + Z= 180°
Substitute
54 + 24 + Z = 180°
78 + Z = 180
Z = 180 - 78
Z = 102°
You distribute a 3/4 wherever you see a v
Use PEMDAS order of operations (parenthesis, exponents, multiply, divide, add, subtract)
12*3/4(32*9/16-8)
12*3/4(18-8)
12*3/4(10)
9*10
=90
Hope this helps
Answer:
B
Step-by-step explanation:
i found the percentage of each and i got 6.0 as my highest which was 15% of 40
561.75 is your answer i hope i helped you get it right
