STAT 88 Discussion 18 - Lecture notes 10 PDF

Preview

Summary

discussion section notes, STAT 88 Discussion 18 Fall 2020...

Description

STAT 88 Discussion 18 ● Announcements: 1. The deadline for HW 8 has been postponed to 10/27 11:59 pm PT (tonight) in light of the potential risk of wildfire in the Berkeley area. Please let us know if

c) The observed distribution of the total number of M&Ms in the next 100 bags

3. (CH8 EX3) A population consists of 1 million people. Incomes in the population have an average of 70,000 dollars and an SD of 30,000 dollars. A simple random sample of 400 people is taken from the population.

c) the probability histogram of the income of a person drawn at random from the population.

0

4. (CH8 EX4) [Continuing the previous exercise.] A population consists of 1 million people. Incomes in the population have an average of 70,000 dollars and an SD of 30,000 dollars. A simple random sample of 400 people is taken from the population. a) Fill in the blank with a number: At least 75% of the population has incomes in the range 70,000 dollars plus or minus ____________ dollars.

b) Fill in the blank with a number: With chance about 75%, the average income of the sampled people is in the range 70,000 dollars plus or minus ____________ dollars....