Answer:
.25 in per hour
Step-by-step explanation:
you just divide 28/7 and you get the per hour and you can double check your work by doing .25 * any hour until you get 28
The expanded form of a number involves rewriting the number
The expanded form of 239238 is 13291 * 3 * 3 * 2
<h3>How to write the number in an expanded form</h3>
The number is given as: 239238
Express as a product of 2
239238 = 119619 * 2
Express as a product of 3
239238 = 39873 * 3 * 2
Further, expand
239238 = 13291 * 3 * 3 * 2
The number cannot be further expanded.
Hence, the expanded form of 239238 is 13291 * 3 * 3 * 2
Read more about expansions at:
brainly.com/question/4344214
Answer:
The margin of error is 
Step-by-step explanation:
From the question we are told that
The sample size is 
The sample mean is 
The standard deviation is 
Given that the confidence level is 95% the the level of significance can be evaluated as



Next we obtain the critical value of
from the normal distribution table,the value is 
Generally the margin of error is mathematically represented as

substituting values

