From the given problem the same size is n = 70. Df = n – 1 =
70 – 1 = 69.
The population mean is u = 30, sample standard deviation is
s = 10 and the sample size is n = 70. Then,
t = x – u / s sqrt of n
1.995 = x – 30 / (10 sqrt of 70)
1.995 = x – 30 / 1.1952
X – 30 = 1.995 (1.1952)
X – 30 = 2.3844
X = 30 + 2.3844
X = 32.3844
The sample mean is 32.3844
<span> </span>
The distribution of the -4 was incorrectly put in as -4b when it should be 4b
The area is 60 and the lenght is 7 times longer than the width which is (w+7) and the formula is l×w=A, and the answer is
w(w+7)=60
What are you trying to say? do you actually need help or what?
32/40 divided by 8/8= 4/5
The answer is 4/5.
Hope this helps!
