Normal distribution

Assignment Help Basic Statistics
Reference no: EM132191884

Normal Distribution

THIS IS ONE SINGLE QUESTION WITH 2 STEPS. PLEASE, PLEASE HELP! I DON'T UNDERSTAND THIS ONE.

Exam scores in a MATH 1030 class is approximately normally distributed with mean 86 and standard deviation 6. Round answers to the nearest tenth of a percent.

a) What percentage of scores will be less than 88? %

b) What percentage of scores will be more than 81? %

c) What percentage of scores will be between 80 and 87?%

Reference no: EM132191884

Questions Cloud

T-value testing for the null hypothesis : What's the t-value testing for the null hypothesis that men and women have the same test scores?
Iq test before and after breakfast : If we want to compare the means from the two tests in a two-tailed test, How many degrees of freedom are there?
Test statistic does fall in the rejection region : Referring to the problem statement, suppose the test statistic does fall in the rejection region at a = 0.05. Would you reject? Why or why not?
Find the percentage of dogs of this breed : The weights of a certain dog breed are approximately normally distributed with a mean of 51 pounds, and a standard deviation of 6.1 pounds.
Normal distribution : Exam scores in a MATH 1030 class is approximately normally distributed with mean 86 and standard deviation 6. Round answers to the nearest tenth of a percent.
Compute the area for a peanut butter jar costing : Compute the area for a peanut butter jar costing between $3.50 and $4.25.
Create a simple web interface for a to-do list application : Deliver a Flask application that provides a simple To Do List application. A typical To Do List application allows a user to keep a list of important tasks
Compute the area for a peanut butter jar : Compute the area for a peanut butter jar costing less than $3.50.
What is the upper limit of the interval : Find a 90% confidence interval for the true mean of the spending. What is the upper limit of the interval?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Was the community experience better or worse than expected

Newgroveton is a community of 445,000. In the most recent year, there were 750 new cases of disease A in the community.

  Probability of selecting a value at random

a. What is the area between 415 pounds and the mean? b. What is the area between the mean and 395 pounds? c. What is the probability of selecting a value at random and discovering that it has a value of less than 395 pounds?

  Create an annotated timeline that links the philosophy

Around the 5th century B.C.E., there was a massive explosion of philosophic writing in a variety of settings. These writings were influenced by political and social challenges, and they in turn influenced culture. In this assignment, you will crea..

  Calculate value of sample proportion that believes in love

In a random sample of n = 500 adults, 300 individuals say that they believe in love at first sight.- Calculate the value of P^ = sample proportion that believes in love at first sight.

  What is the z-value that you should look up

Find out the probability that a randomly picked student has scored 105 or above, what is the z-value that you should look up on the normal distribution table?

  Estimate fixed cost element using regression analysis

Discuss a hospitals total maintenance costs, and use regression analysis to estimate the fixed cost element of maintenance and the variable cost associated with the number of patient-days.

  Testing a random digit dialing device

Voters Voter registration records show that 41% of voters in a state are registered as Democrats. To test a random digit dialing device, you use it to call 250.

  Find the confidence interval for the mean experience

Find the 95% confidence interval for the experience of a new individual (from the same population from which the data were drawn) who is 50 years old.

  Is the correlation in population greater than zero

For a sample of 20 stations last Tuesday the correlation was .78. At the .01 significance level is the correlation in the population greater than 0? t= .78-20.00/.01SQRT 20=?

  Compute the likelihood that she indeed has the cancer

A pair of dice is rolled. The sum of the faces on top is observed. What are the expectation, variance, and standard deviation of the observed sum? The Expectation and Variance Template attached to the main posting is optional and recommended.

  Discuss about increasing scores and correlation

These two questions related to Basic Statistics. The first question discuss about increasing scores and correlation widely spreading out

  What is the interpretation of the intercept in regressions

a what is the interpretation of the intercept in regressions 1 and 2? is the intercept meaningful?b please

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd