Answer:
99% confidence interval for the mean value from the random number generator is a lower limit of 85.87 and an upper limit of 110.93.
Step-by-step explanation:
Confidence interval = mean +/- margin of error (E)
mean = 98.4
sd = 16.3
n = 15
degree of freedom (df) = n - 1 = 15 - 1 = 14
confidence level (C) = 99% = 0.99
significance level = 1 - C = 1 - 0.99 = 0.01 = 1%
t-value corresponding to 14 df and 1% significance level is 2.977.
E = t×sd/√n = 2.977×16.3/√15 = 12.53
Lower limit = mean - E = 98.4 - 12.53 = 85.87
Upper limit = mean + E = 98.4 + 12.53 = 110.93
99% confidence interval for the mean is between 85.87 and 110.93
Answer:
1,3,5,6
Step-by-step explanation:
Answer:
63
Step-by-step explanation:
1/3 of 63= 21
and the reverse of 63 is 36
so 1/2 of 36 =18
so 21-18 =3
hence proven
Answer:
I got -437
Step-by-step explanation:
Lets break it down.
12x - 3y4x - z
If you substitute the numbers for its given variable, you should get
12(3) - 3(13)4(3) - 5
Now, just multiply and subtract to simplify.
36 - 468 - 5
<u>-437</u>
<span>10(x - 3) = 5(3x - 8)
10x - 30 = 15x - 40
10x - 15x = -40 + 30
-5x = -10
x = -10/(-5)
x = 2</span>
