Answer:
95% Confidence interval: (14.4537 ,15.1463)
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 15 feet
Sample mean,
= 14.8 feet
Sample size, n = 16
Alpha, α = 0.05
Sample standard deviation, σ = 0.65 feet
Degree of freedom = n - 1 = 15
95% Confidence interval:
Putting the values, we get,
is the required confidence interval for the true mean length of rods.
Answer:
3/8
Step-by-step explanation:
If 1 and 3 are odd numbers then all you have to do is count the number of 1 and 3's(3). then count the number of numbers (8).
Answer:
-17
Step-by-step explanation:
3 + 4(-5)
= 3-20
= -17
Hope this helps!
Answer:
k = 18
Step-by-step explanation:
Given that y varies inversely as x then the equation relating them is
y =
← k is the constant of variation
To find k use the condition y = 3 when x = 6, that is
3 =
( multiply both sides by 6 )
18 = k
The constant of variation is k = 18
Answer:
1,805 kg.
Step-by-step explanation:
We have been given that in 2010, the world's largest pumpkin weighed 1,810 kilograms. An average-sized pumpkin weighs 5,000 grams. We are asked to find the how much the world's largest pumpkin weighs than an average pumpkin.
First of all, we will convert the weight of average pumpkin in kilograms by dividing 5,000 by 1000 as 1 kg equals 1,000 gm.
![\text{The weight of average pumpkin}=\frac{5000\text{ gm}}{\frac{\text{1000 gm}}{\text{ 1 kg}}}](https://tex.z-dn.net/?f=%5Ctext%7BThe%20weight%20of%20average%20pumpkin%7D%3D%5Cfrac%7B5000%5Ctext%7B%20gm%7D%7D%7B%5Cfrac%7B%5Ctext%7B1000%20gm%7D%7D%7B%5Ctext%7B%201%20kg%7D%7D%7D)
![\text{The weight of average pumpkin}=5000\text{ gm}\times \frac{\text{ 1 kg}}{\text{1000 gm}}](https://tex.z-dn.net/?f=%5Ctext%7BThe%20weight%20of%20average%20pumpkin%7D%3D5000%5Ctext%7B%20gm%7D%5Ctimes%20%5Cfrac%7B%5Ctext%7B%201%20kg%7D%7D%7B%5Ctext%7B1000%20gm%7D%7D)
![\text{The weight of average pumpkin}=5\text{ kg}](https://tex.z-dn.net/?f=%5Ctext%7BThe%20weight%20of%20average%20pumpkin%7D%3D5%5Ctext%7B%20kg%7D)
Now, we will subtract the weight of average pumpkin from world's largest pumpkin's weight.
![1,810\text{ kilograms}-5\text{ kilograms}=1,805\text{ kilograms}](https://tex.z-dn.net/?f=1%2C810%5Ctext%7B%20kilograms%7D-5%5Ctext%7B%20kilograms%7D%3D1%2C805%5Ctext%7B%20kilograms%7D)
Therefore, the 2010 world-record pumpkin weighs 1,805 kilograms more than an average-sized pumpkin.