Find probability that student had a score higher

Assignment Help Basic Statistics
Reference no: EM13126810

In a recent year, grade 8 Minnesota State public school students taking a mathematics assessment test had a mean score of 290 with a standard deviation of 37. Possible test scores could range from 0 to 500. Assume that the scores are normally distributed. Find the probability that a student had a score higher than 320.

Reference no: EM13126810

Questions Cloud

Calculus-minimizing area : Each page of a book will contain 30in^2 of print, and each page must have 2-in margins at top and bottom and a 1-in. margin at each side.
Calculus in commerce-marginal analysis : A manufacturer estimates that if x units of a particular commodity are produced, the total cost will be C(x) dollars, where
Current years asset turnover ratio : A company reports sales revenue of $200 million the current year and $180 million last year. Their total assets in the current year are $150 million and last year's total assets were $130 million. What is the current year's asset turnover ratio?
What will be the equilibrium concentration of co : Consider the following reaction: CO(g)+H2O(g)in equilibrium with CO2(g)+H2
Find probability that student had a score higher : Possible test scores could range from 0 to 500. Assume that the scores are normally distributed. Find the probability that a student had a score higher than 320.
How many grams of acetylene must be burned : The complete combustion of acetylene, C2H2(g), produces 1300. kJ of energy per mole of acetylene consumed. How many grams of acetylene must be burned
How to find the manufacturer-s claim plausible : If the sample mean lifetime of the 100 batteries were 36.7 hours. would you find the manufacturer's claim plausible? Explain.
Determining mathematics-calculus in commerce : If the current levels of input are x = 10 and y = 20, use calculus to estimate the change in input y that should be made to offset an increase of 0.5 in input x so that output will be maintained at its current level.
Accrual method of accounting : Joyce Rescho is self-employed and uses the calendar year and the accrual method of accounting. She reports the following activities for December:

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determining pivotal quantity and its distribution

Consider a random sample of size n from an exponential distribution, Xi ~ EXP(1,eta). a) Show that Q = X1:n - eta is a pivotal quantity and find its distribution.

  Time required to assemble a product

The times required to assemble a product are normally distributed with a mean of 47.5 minutes and a standard deviation equal to 8.5 minutes. What percent of the assembly workers require: (do not include % symbol)

  Develop an estimated regression equation

Use regression analysis to develop an estimated regression equation that could be used to predict the value score given the price of the car.

  Shipping schedule using transshipment model

Determine the most economical monthly shipping schedule. Provide a table showing the routes and total costs.

  Find confidence interval for the population difference

Historical data suggests a standard deviation in the first sample of 10 and a standard deviation in the second sample of 16. Find a 95% confidence interval for the population difference.

  Confidence interval to determine estimated margin of error

Use confidence interval to determine the estimated margin of error, Then determine the sample mean.

  Sample mean and the mazimal margin of error

Use the fact that the confidence interval for the mean is in the for x- E to x+ E to compute the sample mean and the mazimal margin of error E.

  Determining bonferroni correction

What are planned comparisons? Why do researchers making planned comparisons need to make the Bonferroni correction? If a researcher is making four planned comparisons using the .05 significance level

  Determine confidence interval for mean time wired subscriber

Internet is 13.4 hours per week, with the sample standard deviation of 6.8 hours. Determine the 95 percent confidence interval for mean time Wired subscribers spend on Internet.

  Probability-binomial tends to normal

Effectiveness White flies are devastating California crops. An area infested with white flies is to be sprayed with a chemical which is known to be 98% effective for each application.

  Application of binonomial distribution

As a quality engineer working on the Rangdo production line, you have determined that the probability of producing a defective part is 6%.

  Power-drink dispensing machine and probability

A well-established power-drink dispensing machine is programmed to dispense an average of 2.02 liters into a container labled"2 liters". Actual quantities are known to be normally distributed with a standard deviation of 0.015 liters. What is the ..

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