Answer:
Hello some parts of your question is missing below is the missing part
answer : A) p-value = 0.0019 ,
The level of significance ( 0.05 ) > p-value ( 0.0019 )
B) There is no dependence between the two ratings
Step-by-step explanation:
A) using a 0.05 level of significance and test for independence of the quality of management
Test statistic : 
∑ ( Oi - Ei )^2 / Ei
= [(40-35)^2 / 35 ] + [(25-24.5)^2 / 24.5 ] + [(5-10.5)^2 / 10.5] + [(35-40)^2 / 40] + [(35-28)^2 / 28] + [(10-12)^2 / 12] + [ (25-25)^2 / 25 ] + [(10-17.5)^2 / 17.5 ] + [(15-7.5)^2 / 7.5] = 17.03
p-value = 0.0019
Df = 4 ,
The level of significance ( 0.05 ) > p-value ( 0.0019 )
B) There is no dependence between the two ratings
Answer:
Alicia has 9 dollars and Haley has 13 dollars.
Step-by-step explanation:
Let Alicia's money be 
. Hence, Haley's money will be
Together: 
.
Therefore, 
Subtract 4 from both sides:
Thus, 
. Alicia has 9 dollars.
Haley's amount: 
.
Answer:
Answer is 4.1 shirts.
Step-by-step explanation:
The number of T-shirts sold by each students are :
3, 4, 8, 5, 2, 5, 0, 5, 3, 4, 3, 7
To find out mean of the data we apply formula of mean :
Sum of the values / total number of the value
Mean = (3+4+8+5+2+5+0+5+3+4+3+7) / 12
= 49 / 12 = 4.08
When rounded to the nearest tenth we get 4.1 shirts.
The mean of the data set rounded to the nearest tenth is 4.1 .
Answer:
reducing 9.35 to 19.44 is rounded to 19.4
Step-by-step explanation:
9.35 to 19.44 is rounded to 19.4
19.35 = 19.4
19.36 = 19.4
19.37 = 19.4
19.38 = 19.4
19.39 = 19.4
19.40 = 19.4
19.41 = 19.4
19.42 = 19.4
19.43 = 19.4
19.44 = 19.4
Hence Lower bound of of the rectangle = 19.35 mm
Answer
7,3'
hope this helps give me a 5-rate and a thanks!
