In order to compare the life expectancies of three different brands of printers, eight printers of each brand were randomly selected. Information regarding the three brands is shown below.
a.Compute the overall mean.
b.State the null and alternative hypotheses to be tested.
c.Show the complete ANOVA table for this test including the test statistic.
d.The null hypothesis is to be tested at 95% confidence. Determine the critical value for this test. What do you conclude?
e.
Determine the p-value and use it for the test.
Definitions:
Online Store
A website or application where goods and services can be bought over the Internet using a web browser or mobile app.
Social Commerce
Social commerce is a subset of e-commerce that involves social media and user contributions to assist in online buying and selling of products and services.
B2C
Business-to-Consumer, a business model where products or services are sold directly from businesses to the end-consumers.
Bits
The smallest unit of data in computing and digital communications, representing a binary value of either 0 or 1.
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