Question: Sample Problem on T-test (Hypothesis Testing). Please show your complete solution. 1.) A professor in a typing class found out that the average performance of

Sample Problem on T-test (Hypothesis Testing). Please show your complete solution.

1.) A professor in a typing class found out that the average performance of an expert typist is 85 words per minute. A random sample of 16 students took the typing test and an average speed of 62 words per minute was obtained with a standard deviation of 8. Can we say that the sample students performance is below than the expert at 0.05 level of significance?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

ID Salary 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 59.3 26.5 34.1 56.3 46.8 79.5 41.2 23.6 76 22.7 23.8 62.9 41.4 22.3 23.1 46.6 67.6 33.8 24 35 75.2 51.5 22.1 55.4 24.9 24.3 42.9 76.6 75.4...

BNAD 276: Stats Inference in Management Fall 2017 - Dr. Suzanne Delaney Homework 17 - Hypothesis Testing with z and t-scores Name CID #: This homework contains three problems that will allow you to...

15:07 10 . 8.00 KB/S Ill 59 Quarter: 4 Week: 3 MELCs: 1. Computes for the test-statistic value (population mean) (M11/12SP-IVd-1); 2. Draws conclusion about the population mean based on the test-...

MM570 Applied Statistics for Psychology Unit 6 Project: Descriptive Statistics This is a course level assessment assignment. MM570-2: Compare group means with a single or multiple independent...

Who's expert here in Psych Stat. I need help. Question: A psych research group found that 25 participants who were in a program with physical exercise regimen after therapy showed 32% rate of symptom...

MB 3200 Homework #8 ****************************************************************************** Instructions: Solve all the problems. Problems #1, #3, and #4 carry 20 points each. Problems #2 and...

STAT 225 Section 6380 Summer 2015 Quiz #3 Please answer all 10 questions. The maximum score for each question is posted at the beginning of the question, and the maximum score for the quiz is 80...

Dong Lee Math-138 Professor Deshpande 10-16-16 Project Part 2 Research Proposal: Introduction: The first variables I plan to study are the hours you spend on the smartphone daily and the monthly...

The best definition for nonparametric statistics I can think of is when data does not fit inside the normal parameters of a normal distribution, it calls for the use of this statistical method....

Square One Vodka (launch into Australian market) Advertising Requirement: Media plan for a launch into the Australian market, with a $1m budget. Must include TV, combined with other channels. Which...

A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road. One car has a speed of 18 m/h while the other has the speed of 27km/h. The bird starts moving from...

Which of the following is not one of the ways in which operations management contributes to a firms competitive advantage? a. By creating a perceived need b. By adding value to a combination of...

The Demand for Krispee Crunchies, a favorite breakfast cereal of people born in the 1940s, is experiencing a decline. The company wants to monitor demand for this product closely as it nears the end...

Where on the statement of cash flows is the payment of cash dividends reported?

What is the direct method of reporting cash flows from operating activities?

Wages and other operating expenses total $1 12,000. Beginning-of-period prepaid expenses totaled $1,200, and its ending balance is $4,200. The end-of-period wages payable equal $5,600, whereas there...