Answer:
(a) t = 1.6766
Step-by-step explanation:
n = 50
degree of freedom = n - 1 = 50 - 1 = 49
confidence level = 90%
The critical value corresponding to 90% confidence level and 49 degrees of freedom is obtained by interpolating between 48 and 50 degrees of freedom (df)
Let the critical value at 49 df be y
dof. critical value
48. 1.677
49. y
50. 1.676
(49 - 48)/(50 - 48) = (y - 1.677)/(1.676 - 1.677)
0.5 × -1×10^-3 = y - 1.677
y - 1.677 = -5×10^-4
y = -5×10^-4 + 1.677 = 1.6765
The closest option is (a)
Heya!
Here is your answer:
56+4339-843= x1676
3552= x1676
x = 3552/1676
x= 2.12
Answer:
.65625 gallons a week
Step-by-step explanation:
1.5 x 7=10.5
10.5/16= .65625
Answer:
91%
Step-by-step explanation:
If the total is 34, she spent 31/34 dollars on shorts. Divide this and you get 0.91
To make this a percent, move the decimal two places to the right (multiply by 100). Your final answer is 91%
Cris is 15 it’s actually quite easy