Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Salaries for teachers in a particular state have a mean of S 4?000 and a standard deviation of S 415-013. Hint for parts a and

image text in transcribedimage text in transcribed
image text in transcribedimage text in transcribed
Salaries for teachers in a particular state have a mean of S 4?000 and a standard deviation of S 415-013. Hint for parts a and b a. If we randomly select 14 teachers from that district, can you determine the sampling distribution of the sample mean? Nov if yes, what is the name of the distribution [one word]? [if no, leave these three blank] The mean?I I The standard error? I I b. If we randomly select SCI teachers from that district, can you determine the sampling distribution of the sample mean? if yes, what is the name of the distribution [one word]? [if no, leave these three blank] The mean?I I The standard error? I I c. For which sample size would I need to know that population distribution of X, teacher salaries, is normal in order to answer? Hint for part c 51.?" d. Assuming a sample size of ED, what is the probability that the sampling error is within 51 DOD. [In other words, the sample mean is within Sl of the true mean.) Hint for d Hint for e and f e. Assuming a sample size of SCI, what is the 90th percentile for the AVERAGE teacher's salary? f. Assuming that teacher's salaries are normally distributed, what is the 90th percentile for an INDIVIDUAL teacher's salary? 3' Next

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Real Analysis

Authors: N L Carothers

1st Edition

1139632434, 9781139632430

More Books

Students also viewed these Mathematics questions

Question

Write the numeral as a Roman numeral. 1914

Answered: 1 week ago

Question

Technology

Answered: 1 week ago

Question

Population

Answered: 1 week ago