Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Find the 95 percent confidence interval for population mean.

1. The sample mean is 50, the t-critical value is 1.96, and the standard error of the sample mean is 2.

What is the 95 percent confidence interval?
1.46 to 50
2.46.08 to 53.92
3.46.80 to 53.29
4.48 to 52

2. As the confidence level 1 - α increases, the width of the confidence interval.
i. increases
ii. Decreases
iii. Remains the same
iv. None of the above

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921752

Have any Question? 


Related Questions in Statistics and Probability

Consider the three alternative allocations of money m in an

Consider the three alternative allocations of money (m) in an economy composed of three people, with people labeled A, B, C, and alternative allocations labeled X, Y, Z. The values in the 9 cells are the moneys accruing ...

One of the most famous labormanagement conflicts took place

One of the most famous labor/management conflicts took place in the 1902 Coal Strike in Pennsylvania. The strike brought the coalmine owner George Baer against the United Mine Workers Union, and led Theodore Roosevelt to ...

The percentage of people who recycle their old phone books

The percentage of people who recycle their old phone books is 15.8% on average. If 240 people are randomly selected, what is the probability that more than 20% of them recycle their phone books?

What issues did the third world radicalism address how

What issues did the third world radicalism address? How successful were their leaders in implementing their goals? Answer has to be a page minimum

Measures of central tendency summative taskon a separate

Measures of Central Tendency Summative Task On a separate paper hand out the solution of the two parts of the investigation: Part One - Use the given data set to solve the following problems: 50, 55, 60, 60,70, 80 A. Fin ...

Consider a sealed-bid second-price auction with two buyers

Consider a sealed-bid second-price auction with two buyers, whose private values are independent; buyer 1's private value is uniformly distributed over [0, 1], and buyer 2's private value is uniformly distributed over [0 ...

A survey of 68 courses delivered fully online found a mean

A survey of 68 courses delivered fully online found a mean of 13.5 videos with a standard deviation of 2.81. You can assume that the number of videos in an online course is normally distributed. Find the 89% confidence i ...

The amount of time people spend in a clothing store is

The amount of time people spend in a clothing store is normally distributed with a mean of 18 mins and SD of 4 mins. If a sample of 20 customers is randomly selected. what is this probability they will spend more than 20 ...

A researcher was interested in the effects of weather on

A researcher was interested in the effects of weather on cognitive performance. He tested participants on either sunny or cloudy days, and obtained the following scores on a 10-item test of cognitive performance. Using t ...

Reading journal assignment stage iifor this portion of the

Reading Journal Assignment Stage II For this portion of the journal, you will create five journal entries, each addressing the prompts given below. Each entry will be one page in length, double spaced, with 12 point font ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro