Mathematics, 11.10.2019 01:10 kingb59
Sony would like to test the hypothesis that the average age of a playstation user is different from the average age of an xbox user. a random sample of 36 playstation users had an average age of 34.2 years while a random sample of 30 xbox users had an average age of 32.7 years. assume that the population standard deviation for the age of playstation and xbox users is 3.9 and 4.0 years, respectively. sony would like to set α = 0.10. which one of the following statements is true?
(a) because the p-value is less than α, we reject the null hypothesis and can conclude that the average age of playstation users is different from the average age of xbox users.
(b) because the p-value is less than α, we fail to reject the null hypothesis and conclude that the average age of playstation users is equal to the average age of xbox users.
(c) because the p-value is greater than α, we fail to reject the null hypothesis and cannot conclude that the average age of playstation users is different from the average age of xbox users.
(d) because the p-value is greater than α, we fail to reject the null hypothesis and can conclude that the average age of playstation users is different from the average age of xbox users.
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Sony would like to test the hypothesis that the average age of a playstation user is different from...
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