A test was made of H0: 1 = 2 versus H1: 1 < 2. The sample means

Question:

A test was made of H0: μ1 = μ2 versus H1: μ1 < μ2. The sample means were x̄1 = 6 and x̄2 = 11, the sample standard deviations were s1 = 3 and s2 = 5, and the sample sizes were n1 = 10 and n2 = 20.

a. How many degrees of freedom are there for the test statistic, using the simple method?

b. Compute the value of the test statistic.

c. Is H0 rejected at the 0.05 level? Explain.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

See More Books

Question Posted: May 10, 2024 10:01 AM

See More Questions

A test was made of H0: 1 = 2 versus H1: 1 2. The sample means were x1 = 10 and x2 = 8, the sample standard deviations were s1 = 4 and s2 = 7, and the sample sizes were n1 = 15 and n2 = 27. a. How...
A test was made of H0 : 1 = 2 versus H1: 1 2. Independent random samples were drawn from approximately normal populations. The sample means were x1 = 73.9 and x2 = 71.8. The sample standard...
A test was made of H0 : 1 = 2 versus H1: 1 > 2. Independent random samples were drawn from approximately normal populations. The sample means were x1 = 6.8 and x2 = 4.9. The sample standard...
1:When developing a marketing strategy for business customers, it is essential to understand the process the business goes through when making a buying decision. Knowledge of business buying behavior...
A crate of books is to be put on a truck by rolling it up an incline of angle using a dolly. The total mass of the crate and the dolly is m. Assume that rolling the dolly up the incline is the same...
a. Explain how you could use a random number table to simulate rolling a fair six-sided die 20 times. Assume you wish to find the probability of rolling a 1. Then report a line or two of the random...
Explain the nature and roles of accounting and finance.
September Company has five salaried employees. Your task is to use the following information to prepare a payroll register to calculate net pay for each employee: Assume the following:1. FICA OASDI...
the Alexis Company for the month of November 2019: Job No. 123 Job No. 124 Job No. 125 Job No. 126 Job No. 127 In process, Nov. 1 Materials P20,000 P30,000 P90,000 0 Labor P70,000 P40.000 P100,000 0...
The General Social Survey polled a sample of 1048 adults in the year 2010, asking them how many hours per week they spent on the Internet. The sample mean was 9.79 with a standard deviation of 13.41....
In general, it is not recommended to use a pooled standard deviation when testing a hypothesis for the difference between means. In Exercises 5 and 6, determine whether the statement is true or...
Steam is generated in the boiler of a cogeneration plant at 600 psia and 800F at a rate of 18 lbm/s the plant is to produce power while meeting the process steam requirements for a certain industrial...
Monique has amassed a following of over 1 Million followers on social media. Her content primarily centers around her fabulous life. Think pool days, brunch, happy hours, Taco Tuesday, travel, and...
For three consecutive years the tuition of an university increased by 10%, 14 %, and 12%, respectively. What was the overall percentage increase of tuition during the three-year-period? The overall...
find the probability of getting an order that is not accurate. Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly...
Nitrogen dioxide (NO2) concentrations are measured in an air-quality study and decrease from 5 ppmv to 2 ppmv in 4 min with a particular light intensity. (a) What is the first-order rate constant for...
How have feminist literary theories evolved over time, and what impact have they had on the reinterpretation of classic literature through a gendered lens ?
What data structures can be used for directory information?
The manager for retail customers, Katie White, wants to hear your opinion regarding one business offer she has received from an entrepreneur who is starting a mobile phone app called Easy Money. The...

A test was made of H0: 1 = 2 versus H1: 1 < 2. The sample means

Question:

Step by Step Answer:

Elementary Statistics

Students also viewed these Business questions