Confidence intervals and probability

Reference no: EM13106148

Suppose that 55 percent of the people in a population of 500,000 support your candidate. If you conduct a poll of 1,000 people, what is the interval that has a 95 percent chance of containing the results of your poll?

Suppose you have 60 red marbles and 40 blue marbles in a box. If you pick out 10 marbles without replacement, what is the probability of selecting 6 red marbles?

Can you show me step-by-step and solutions to these two problems?

Reference no: EM13106148

Questions Cloud

Testing of hypothesis and confidence interval : Body mass index is calculated by dividing a persons weight by the square of his or her height; it is a measure of the extent to which the individual is overweight.

Find the x component of this runner average acceleration : An athlete starts at point A and runs at a constant speed of 7.00 m/s around a round track 250 m in diameter? Find the x component of this runner's average velocity between points A and B.

Case study - heartsong llc : Heartsong LLC is a designer and manufacturer of replacement heart valves based in Peoria, Illinois. While a relatively small company in the medical devices field, it has established a worldwide reputation as the provider of choice high-quality, leadi..

How to associate conception of plot to protagonist-crisis : Describe how you associate this conception of plot to the following elements of narrative: a) the protagonist; b) the conflict; c) the crisis.

Confidence intervals and probability : Suppose that 55 percent of the people in a population of 500,000 support your candidate. If you conduct a poll of 1,000 people, what is the interval that has a 95 percent chance of containing the results of your poll?

Find neils velocity and magnitude : Two friends, Barbara and Neil, are out rollerblading. With respect to the ground, Barbara is skating due south at a speed of 2.7 m/s. Neil is in front of her.

How authoritative and stable wiki is : You will examine a specific entry from wiki and check for changes that have occurred over a period of six months, then you will compare the information from the wiki entry with the information from an established reference source such as the Encyc..

Mean and standard deviation-sat verbal score : What is the mean and standard deviation for this groups' SAT verbal score? What is the 95% confidence interval for the mean SAT verbal score for these students?

Confidence interval-breaking strengths of cables : The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 82 pounds. A random sample of 150 newly manufactured cables has a mean breaking strength of 1950 pounds.

User Account

All Pages