Answer:
3) x= 3, -2
4) 36
Step-by-step explanation:
3) x= 3, -2
4) 36
Answer:
we reject H0 and conclude that management's belief about variance is untrue.
Step-by-step explanation:
H0 : σ² = 250
H1 : σ² ≠ 250
Sample size, n = 25
xbar = 50.6 ; s² = 500
α = 0.01 ;
The test statistic :
χ² = [(n - 1)s²] ÷ σ²
χ² = [(25 - 1)* 500] ÷ 250
χ² = (24 * 500) / 250
χ² = 12000 / 250
χ² = 48
The critical value:
df = n-1 ; 25 - 1 = 24
χ²(0.01/2 ; 24) = 45.559
Decison :
Reject H0 : if |χ² statistic| > critical value
Since 48 > 45.559
Hemce, we reject H0 and conclude that management's belief about variance is untrue.
Expression that can be written in the box on the other side of the equation will be x
Step-by-step explanation:
The left side of equation is: 
Simplifying the equation we get:
An equation has no solution when, we cannot find the value of x.
So, The order side of equation can be x
i.e,
So, expression that can be written in the box on the other side of the equation will be x
Keywords: Solving Equations
Learn more about solving equations at:
#learnwithBrainly
Answer:
a) 8925, b)6872.25
Step-by-step explanation:
a) (8500)+(8500(5/100))=8925
b) (8925)-(8925(23/100))=6872.25
Answer: V≈50.27
Step-by-step explanation: V=πr^2h/3
Plug in: π(4)^2 3/3
16π
Decimal Form:
50.26548245
Round≈50.27
Hope this helps and would appreciate brainliest! Have a great day.
