Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Multiple choice problems based on Standard normal distribution.

1) At a computer manufacturing company the real size of computer chips is normally distributed with a mean of 1 centimetre as well as a standard deviation of 0.1 centimetre. A random ex of 12 computer chips is taken. describe what is the standard error for the sample mean?

1) 0.029

2) 0.050

3) 0.091

4) 0.120

2) At a computer manufacturing company and the actual size of computer chips is usually distributed with a mean of 1 centimetre and a standard deviation of 0.1 centimetre. A random ex of 12 computer chips is taken. describe the probability that the sample mean will be between 0.99 and 1.01 centimetres?

3) The owner of a fish market has an associate who has determined that the weights of catfish are normally distributed with mean of 3.2 pounds as well as standard deviation of 0.8 pound. If a sample of 25 fish yields a mean of 3.6 pounds what is the Z-score for this observation?

1) 18.750

2) 2.500

3) 1.875

4) 0.750

4) The amount of time required for an oil as well as filter change on an automobile is normally distributed with a mean of 45 minutes as well as a standard deviation of 10 minutes. A random sample of 16 cars is selected. describe the probability that the sample mean is between 45 and 52 minutes?

5) Times spent studying by students in the week beforehand final exams follow a normal distribution with standard deviation 8 hours.  A random sample of four students was taken in order to estimate the mean study time for the population of all students. describe the probability that the sample mean exceeds the population mean by more than two hours?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920313

Have any Question? 


Related Questions in Statistics and Probability

A scarf company built a new parking garage in a business

A Scarf Company built a new parking garage in a business district. For a random sample of 100 days, daily fees collected averaged $1,800, with a standard deviation of $500. Construct a 90% confidence interval estimate of ...

A business student is interested in estimating the 99

A business student is interested in estimating the 99% confidence interval for the proportion of students who bring laptops to campus. He wishes a precise estimate and is willing to draw a large sample that will keep the ...

Lucerne earns a gross income of 5500 per month and applies

Lucerne earns a gross income of $5,500 per month and applies for a mortgage with a monthly PITI of $1,244. Lucerne has other financial obligations totaling $829 per month. (Use the ratio guidelines from your text) What t ...

Data mining review questions - xlminer labs - cluster

Data Mining Review Questions - XLMiner Labs - Cluster Analysis1. Marketing to Frequent Flyers. The file EastWestAirlinesCluster.xls contains information on 4000 passengers who belong to the airline's frequent flier progr ...

Problem 1 three times each day a quality engineer samples a

Problem 1: Three times each day, a quality engineer samples a component from a recently manufactured batch and tests it. Each part is classified as conforming (suitable for its intended use), downgraded (unsuitable for t ...

One study based on responses from 1013 teenagers concluded

One study based on responses from 1013 teenagers concluded that 42% cite grades as their greatest source of pressure. Use .05 significance level to test the claim that fewer than half of all teenagers in the population f ...

At a school pep rally a group of sophomore students

At a school pep rally, a group of sophomore students organized a free raffle for prizes. They claim that they put the names of all the students in the school in the basket and that they randomly drew 36 names out of this ...

1 if the independent variable has absolutely no effect on

1. If the independent variable has absolutely no effect on the dependent variable, will the means of the experimental conditions be the same? Why or why not? 2. An ANOVA for a one-way design partitions the total variance ...

Answer the following questions showing all work1 using

Answer the following questions showing all work. 1. Using http://onlinestatbook.com/stat_sim/sampling_dist/index.html, select a population distribution that is NOT normal (i.e., heavily skewed, uniform, bimodal). Using t ...

Three different brands of pain relief medication are

Three different brands of pain relief medication are available for minor aches and pains. It is of interest to know whether the mean time to relieve the pain differs from brand to brand. To find out, twelve individuals w ...

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen