Answer:
there is significant evidence to support that the claim that the mean time women spend watching television less than the mean time spent by men.
Step-by-step explanation:
H0 : μw = μm
H1: μw < μm
The test statistic :
(x1 - x2) / sqrt[(sp²/n1 + sp²/n2)]
df1 = 14 - 1 = 13
df2 = 17 - 1 = 16
Pooled variance = Sp² = (df1*s1² + df2*s2²) ÷ (n1 + n2 - 2)
Sp² = ((13*4^2) + (16*4.2^2)) ÷ (13 + 16)
Sp² = 16.90
t = (12.9 - 16.4) ÷ sqrt((16.90/14 + 16.90/17))
t = - 3.5 ÷ 1.4836645
t = - 2.359
Using the Pvalue from Tscore ; at 95% ; df = 29
Pvalue = 0.0126
Pvalue < α
0.0126 < 0.05 ;
Hence, we reject the null and conclude that there is significant evidence to support that the claim that the mean time women spend watching television less than the mean time spent by men.
Answer:
2
Step-by-step explanation:
2(3x²-5)-5=9
6x²-10-5=9
6x²-15=9
6x²=9+15
6x²=24
x²=24/6
x²=4
x=2
Answer:
4 hours 48 minutes
Step-by-step explanation:
Right now, in this problem the whole set comprises of a single day and you know that there are 24 hours in a day.
In order to solver the problem,you have to draw a number line of length 24 and then separate it into 5 equal parts. (because there are total five brothers)
or simply, just divide 24 by 5.
= 24/5 => 4 hours
lets convert 4/5 hour to minutes, as you know there are 60 minutes in one hour.
therefore, 4/5 x 60= 48 minutes.
Answer: Each brother will spend 4 hours watching the puppy in single day, which is likewise 4 hours 48 minutes
The distance formula is used to find the distance between two points in the coordinate plane. The point that is at the same distance from two points A and B on a line is called the midpoint. You calculate the midpoint using the midpoint formula.
Answer:
No, that answer is not correct. If you split the figure in half you have one line of symmetry. I think that the figure only has one line of symmetry.