This coordinate grid shows where Alberto's school is located. Each unit represents one block. Alberto's house is at (3,4). The l
ibrary is located at the reflection of (3,4) across the y-axis.
PART A
What are the coordinates of the library?Explain how you know.
PART B
not needed
PART C
Use absolute value to find the distances from Albertos house to the school and from Albertos house to the library.
PART A
What are the coordinates of the library?Explain how you know.
PART B
not needed
PART C
Use absolute value to find the distances from Albertos house to the school and from Albertos house to the library.
2 answers:
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Answer:
972 junior executives should be surveyed.
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 .
The margin of error is of:
35% of junior executives left their company within three years.
This means that
0.95 = 95% confidence level
So , z is the value of Z that has a pvalue of
, so
.
To update this study, how many junior executives should be surveyed?
Within 3% of the proportion, which means that this is n for which M = 0.03. So
Rounding up:
972 junior executives should be surveyed.
