题目
题目

Research Methods and Statistics in Psychology (1003PSY_3255)

单项选择题

  In the general population (of cats), it is known that cats spend an average of 14 hours per day sleeping (population standard deviation = 2 hours). Dr Anna is interested in testing whether this number differs for cats that live in cat cafes. Therefore, she collects data from a simple random sample of 210 cats that live in cat cafes across the world. She wants to compare the mean of her sample to the population of cats in general.  What test should Anna conduct?

选项
A.z-test
B.one sample t-test
C.repeated measures t-test
D.independent measures t-test
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思路分析
To begin, let's lay out the scenario: the population mean for sleeping in the general cat population is known to be 14 hours with a population standard deviation of 2 hours, and Dr. Anna has a simple random sample of 210 cats from cat cafes. She wants to compare the sample mean to the known population mean. Option 1: z-test. This test is appropriate when y......Login to view full explanation

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