Test the instructor-s claim at a level of significance

Assignment Help Basic Statistics
Reference no: EM13135865

An instructor believes that 20% or less of the students who finish a statistics course gat an "A" grade. A sample of 100 students was taken. 24 of the students in the sample received an "A". Test the instructor's claim at a 5% level of significance. What is your conclusion?

Reference no: EM13135865

Questions Cloud

What is the balance in work in process inventory : At the beginning of 2011, the Taylor Company's work in process inventory account had a balance of $30,000. During 2011, $68,000 of direct materials were used in production, and $66,000 of direct labor costs were incurred. Manufacturing overhead in..
Explain concept of regression analysis and its types : Explain the concept of "Regression Analysis", its types (3 types at least), applications and usefulness. Provide real application of its usage. Some times, Maximum likelihood estimation is not applicable, Explain and provide an example?
What is the depreciable basis for the office equipment : Barber Corporation purchased all the assets of TECO Corporation for $1,820,000. An appraisal yielded the following: the building had a fair market value of $1,200,000; equipment a value of $1,000,000; and office equipment a value of $400,000. Wha..
What was the balance in work in process inventory account : On June 1, 2012, Dalton Production Company had beginning balances as shown in the T-accounts below. Materials inventory Work in process inventory Finished goods inventory Manufacturing overhead 10,000 20,000 25,000 41,000 During June.
Test the instructor-s claim at a level of significance : 24 of the students in the sample received an "A". Test the instructor's claim at a 5% level of significance. What is your conclusion?
How many moles of h2so4 are present : A sample of H2SO4 contains 1.11 grams of H (1.01 g/mol). How many moles of H2SO4 (98.02 g/mol) are present?
Evaluating capital investment proposals : The methods of evaluating capital investment proposals can be grouped into two general categories that can be referred to as (1) methods that ignore present value and (2) present values methods.
How much nitrogen is consumed : 2 FeS + 3 N2 → 2 FeN + 2 SN2 This reaction has a 65.0% yield. How much N2 is consumed if 13.6 g of FeN are produced?
Find the critical value to test the claim : Find the critical value to test the claim that all ages have crash rates proportional to their driving rates. That all ages have crash rates proportional to their driving rates.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Nasdaq annual rates of return

The following data on annual rates of return were collected from five stocks listed on the New York Stock Exchange ("the big board") and five stocks listed on NASDAQ.

  Determining sample size required

The manager requires the estimate to be within 1.0 minutes of the population value. What sample size is needed?

  Mean and the standard deviation of the number of firms

What are the mean and the standard deviation of the number of firms that purchase a Unix machine from Sun Microsystems?

  Population variance-standard deviation-point estimate

Incomes in the thousands of dollars were sampled in one region, they are as follows (1.5, 3.0, 4.2, 5.6, 2.6, 4.1, 0.9, 5.7, 5.4, 2.6) Assume the population is normal.

  Sleep loss and effects on job performance

What I need are relevant questions for a survey questionnaire that will be valid for testing each of 3 hypotheses. Include the variables tested.

  Determining the forecast based on the two different methods

Would you be willing to provide an example of both methods (step by step) described in your document for determining the forecast based upon the two different methods. Maybe just for one single city.

  Study states probability in a queuing theory

To determine the efficiency of the current ticket operation, Mike wishes to examine several queue operating characteristics.

  Determine the standard error of the mean

A random sample of 100 computers showed a mean of 115 gigabytes used with a standard deviation of 20 gigabytes. What is the standard error of the mean?

  What proportion of plan recipents die before retirement age

Participants is approximately a normal distribution with a mean of 68 years and a standard deviation for 3.5 years. What proportion of the plan recipents die before they reach the standard retirement age of 65.

  Writing quadratic equations

Write three quadratic equations within a, b, c (coefficients of x^2, x and the constant as 1 integers, 2 rational, 3 irrational numbers).

  Probability distribution of sample mean

A wholesaler assures retailer replacement times for TVs normally dist. with mean of 8.2 and s.d. of 1.1. The retailer finds that a random sample of 20 sets from the wholesaler have mean replacement time of 7.6 years.

  Find the expected value using tree diagram

What should ING's General Counsel do to minimize ING's expected costs?

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