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A group says that the mean daily lodging cost for a family traveling in Region 1 is the same as in Region 2. The mean daily lodging cost for 41 families traveling in Region 1 is ?$142 with a population standard deviation of ?$25. The mean daily lodging cost for 41 families traveling in Region 2 is ?$135 with a population standard deviation of ?$19. At alpha (equals) α = 0.10, is there enough evidence to reject the? group's claim? Complete parts? (a) through? (e).
a) Identify the claim and state H0 and Ha.
What is the? claim?
?(b) Find the critical? value(s) and identify the rejection? region(s).
The critical? value(s) is/are [ ]?
What? is/are the rejection? region(s)?
?(c) Find the standardized test statistic z for μ1 - μ2.?
(d) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below.?
(e) Interpret the decision in the context of the original claim.?
Using the six-step critical value approach, at the 0.05 level of significance, is there evidence that the population mean delivery time has been reduced below the previous population mean value of 25 minutes? At the 0.05 level of significance , use..
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There are tons of reasons why our sample's time completing their rental task differed from the website's claim.
phone calls received by a police dept. are normally distributed. a random sample of 16 days showed that the dept.
A coin was flipped 60 times and came up heads 36 times. What is the critical value you would use to test whether the proportion of heads is greater than 0.50 at a 10% level of significance?
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