An annual championship event is the most widely watched sporting event in a country each year. In recent years, there has been a great deal of interest in the ads that appear during the game. These ads vary in length with most lasting 30 seconds or 60 seconds. The accompanying data represent the ad length and ad scores from a recent championship. Complete parts (a) through (c).
An annual championship event is the most widely watched sporting event in a country each year. In recent years, there has been a great deal of interest in the ads that appear during the game. These ads vary in length with most lasting 30 seconds or 60 seconds. The accompanying data represent the ad length and ad scores from a recent championship. Complete parts (a) through (c).
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
what is p value?
An annual championship event is the most widely watched sporting event in a country each year. In recent years, there has been a great deal of interest in the ads that appear during the game. These ads vary in length with most lasting 30 seconds or 60 seconds. The accompanying data represent the ad length and ad scores from a recent championship. Complete parts (a) through (c).
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a. Assuming that the population variances from the 30-second ads and the 60-second ads are equal, is there evidence of a difference in the mean score between the two types of ads? Use
α=0.02.
Let
μ1
be the mean score for the 30-second ads and
μ2
be the mean score for the 60-second ads. Determine the hypotheses. Choose the correct answer below.H0:
μ1≥μ2H1:
μ1<μ2H0:
μ1=μ2H1:
μ1≠μ2H0:
μ1≠μ2H1:
μ1=μ2H0:
μ1≤μ2H1:
μ1>μ2Find the test statistic.
tSTAT=negative 1.84−1.84
(Round to two decimal places as needed.)
Find the critical value(s).
negative 2.55 comma 2.55−2.55, 2.55
(Use a comma to separate answers as needed. Round to two decimal places as needed.)
Choose the correct conclusion below.
Do not reject
H0.
There is
insufficient
b. Determine the p-value in (a) and interpret its meaning.
p-value=enter your response here
(Round to three decimal places as needed.)
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