Mathematics, 25.02.2020 02:23 eme05
The Late Show with David Leterman is seen by a relatively large percentage of household members who record the show for viewing at a more convenient time. The show’s marketing claims that the mean income of households with DVR’s is greater than $40,000. Test that claim using a 0.5% significance level.
A random sample of 1700 households with DVR’s produces a sample mean of $41,182 and a sample standard deviation of $19,990.
Perform a test of hypothesis to check the validity of the marketing managers claim by completing the following steps:
a) State the hypothesis
b) Find the standardized test statistic
c) Find the P-value
d) At a 0.01 state your decision
Answers: 2
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