0.41, 0.5, 3/5 is the order
Answer:
The 80% confidence interval for the population proportion of oil tankers that have spills each month is (0.199, 0.257).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
Suppose a sample of 333 tankers is drawn. Of these ships, 257 did not have spills.
333 - 257 = 76 have spills.
This means that
80% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The 80% confidence interval for the population proportion of oil tankers that have spills each month is (0.199, 0.257).
Answer:
0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 8 minutes
Standard Deviation, σ = 2.5 minutes
Sample size, n = 25
We are given that the distribution of time spent is a bell shaped distribution that is a normal distribution.
Formula:

Standard error due to sampling =

P(sample mean is between 7.8 and 8.2 minutes)

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.
The total cost of chocolate sprinkles is $800
<h3>Place value charts</h3>
This is an implementation of the numeral system that shows the value of each digit in a number using their positions
From the complete question, we have the following parameters:
- Unit rate = $8.00
- Total pounds = 100
<h3>
Total cost of chocolate sprinkles</h3>
So, the total cost of chocolate sprinkles is calculated using the following formula

This gives

Multiply both sides of the equations by 100


Hence, the total cost of chocolate sprinkles is $800
Read more about place value charts at:
brainly.com/question/12386995
Answer: The answer is not 1 it's 2
Step-by-step explanation:
Multiply 4*1 to get 4
Multiply 1*2 to get 2
Your answer should be 4/2 which equals 2