The College Board reports that in a recent year, the mean mathematics SAT score was 514, and
Question:
The College Board reports that in a recent year, the mean mathematics SAT score was 514, and the standard deviation was 118.
A sample of 65 scores is chosen.
a. What is the probability that the sample mean score is less than 500?
b. What is the probability that the sample mean score is between 480 and 520?
c. Find the 80th percentile of the sample mean.
d. Would it be unusual if the sample mean were greater than 550?
e. Can you tell whether it would be unusual for an individual to get a score greater than 550? Explain.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answered By
Shubhradeep Maity
I am an experienced and talented freelance writer passionate about creating high-quality content. I have over five years of experience working in the field and have collaborated with several renowned companies and clients in the SaaS industry.
At Herman LLC, an online collective of writers, I generated 1,000+ views on my content and created journal content for 100+ clients on finance topics. My efforts led to a 60% increase in customer engagement for finance clients through revamping website pages and email interaction.
Previously, at Gerhold, a data management platform using blockchain, I wrote and published over 50 articles on topics such as Business Finance, Scalability, and Financial Security. I managed four writing projects concurrently and increased the average salary per page from $4 to $7 in three months.
In my previous role at Bernier, I created content for 40+ clients within the finance industry, increasing sales by up to 40%.
I am an accomplished writer with a track record of delivering high-quality content on time and within budget. I am dedicated to helping my clients achieve their goals and providing exceptional results.
1+ Reviews
10+ Question Solved
Related Book For 
Question Posted:
