![tatibean26](/avatars/29814.jpg)
tatibean26
13.04.2020 •
Mathematics
A researcher is interested in estimating the average salary of police officers in a large city. She wants to be 95% sure that her estimate is correct. If the standard deviation is $1050, how large a sample is needed to get the desired information and to be accurate within $200?
Z D/2 = 1.96
Solved
Show answers
More tips
- H Horoscopes, Magic, Divination Is there a 13th Zodiac Sign?...
- H Health and Medicine Want to Lose Weight? Gain Muscle without Damaging Your Health!...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
Answers on questions: Mathematics
- M Mathematics Using complete sentences, compare the key features and graphs of sine and cosine. what are their similarities and differences? . using these similarities and differences,...
- M Mathematics Consider the figures below. Select all of the following statements that are correct about the figures. And there is figure 1 and figure 2 figure 1 is a rectangle base=5...
- M Mathematics Factor 140c + 28 -14a to identify the equivalent expressions....
- H Health How can I help spread LGBTQ+ and BLM awareness ? Share your thoughts on the subjects below. 100 points...
- P Physics Hi i really need a 4 kg ball and a 3 kg block of wood were placed in an arrangement as shown above when the ball was released, it fell through a distance of 5 m, pulling...
Ответ:
The sample size is 183.
Step-by-step explanation:
Given:
σ = $1050, ppulatin standard deviation
99% confidence interval
Accuracy = +/- $200
The accuracy is given by
z*(σ/√n)
where
z* = 2.576 for 99% confidence level (from tables)
n = sample size
Therefore
2.576(1050/√n) = 200
√n = (2.576*1050)/200 = 13.524
n = 182.9
The sample size is 183
❂✨Answered By Tokyo✨❂
❉ Brainliest Would Be Appreciated❉
✯If You Have Questions Ask In the Chat Box✯
Ответ:
Tenth
Step-by-step explanation:
the value of 8 in 0.837 is a tenth