Answer:
Z = -6.3
Step-by-step explanation:
Given that:
Since the alternative hypothesis is less than 0.28, then this is a left-tailed hypothesis.
Sample sixe n = 800
= 0.217
The standard error
Since this is a single proportional test, the test statistics can be computed as:
Z = -6.3
Answer:
(-∞, 4]
Step-by-step explanation:
The range of the function is the values that the output can take
Y goes from negative infinity to and including 4 ( assuming the scale is 1)
(-∞, 4]
Answer:
Step-by-step explanation:
Let x represent the number of rides Beth rides and y represent the number of exhibits she views.
Each ride costs $7 to ride and each exhibit costs $3 to view.
This means that x rides will cist x × 7 = $7x
Also, if she views y exhibits, the cost will be y × 3 = $3y.
Total cost of x rides and y views will be 7x + 3y
if she has at most $98 to spend at the fair, it means that all she can spend must be lesser than or equal to $98
The required expression will be
7x + 3y </=8
Answer:
(3,0,0)
Step-by-step explanation:
3x + 5y + z = 9 --------------(I)
-4y - z = 0 -------------------(II)
z = -4y
2x + 3y - 4z = 6 (III)
Substitute z = -4y in equation (I) and (III)
3x +5y - 4y = 9
3x + y = 9 -----------------------(a)
2x + 3y - 4*(-4y) = 6
2x + 3y + 16y = 6
2x + 19y = 6 -------------------(b)
Multiply equation (a) by (-19) and then add. So, y will be eliminated and we can get the value of x
(a)*(-19) -57x - 19y = -171
(b) <u> 2x + 19y = 6 </u>
-55x = -165
x = -165/-55
x = 3
Plugin x = 3 in equation (a)
3*3 + y = 9
9 + y = 9
y = 9 - 9
y = 0
Plug in y = 0 in equation (II)
-4*0 - z = 0
z = 0
Given
x=0 and x =10 and x1, x2, x3, x4 are the midpoints of five equal intervals
Answer
The 5 equal intervals are 2 , 4 , 6, 8 10
Mid points are 1, 3 , 5 , 7 , 9
Option B is correct