A farm receives a delivery of 300 bales of hay. The farmer can unload the bales of hay at a rate of 90 bales per hour. Which fun
1 answer:
Answer:
Step-by-step explanation:
Number of bales to be delivered = 300
Hourly rate to unload bales = 90
Let number of hours be represented by 't'.
Also represents the number of bales that still need to be unloaded after 't' hours.
The number of bales that still need to be unloaded after t hours can be calculated by Subtracting rate to unload bales multiplied with number of hours from Number of bales to be delivered.
framing in equation form we get;
Hence Final Answer is .
You might be interested in
Answer:
D. The 95% confidence interval is (3.4102, 4.1898). We are 95% confident that the true population mean potassium level for professional wrestlers will be between 3.4102 millimoles per liter and 4.1898 millimoles per liter.
Step-by-step explanation:
Hello!
The variable if interest is X: potassium level of a professional wrestler (mmol/L)
A sample of n= 52 professional wrestlers was taken and a sample mean of X[bar]= 3.8 mmol/L and a sample standard deviation of S= 1.4 mmol/L
You have to estimate the population average potassium level using a 95% confidence interval. Assuming that the variable has a normal distribution, and since the population variance is unknown, I'll use a student t to construct the interval:
[X[bar] ± *
]
[3.8±2.008*]
[3.4102; 4.1898]
With a 95% confidence level you'd expect that the interval [3.4102; 4.1898]mmol/L will contain the average potassium level of professional wrestlers.
I hope this helps!