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Do University of Florida students study more than 5 hours a day? A random sample of 150 students were asked how many hours they studied during a 24 hour period. The sample mean was 5.4 hours while the standard deviation was 1.2. What is the test statistic?

 Is the amount of sleep that Americans get more than 8 hours per day? In 2013, the Bureau of Labor Statistics, conducted a survey. They asked the participants to make a diary of what they did during a 24 hours period. The sample size was 104. The sample mean amount of sleep was 8.74 hours and the sample standard deviation was 2.4. What is the test statistic?

A group of 100 students were asked whether or not they had eaten out at a restaurant within the past week.  Is the population proportion of underclassmen(1) who ate out at a restaurant within the past week the different from the population proportion of upperclassmen(2) who ate out at a restaurant within the past week? What would be the correct alternative hypothesis?

Have people changed their opinion about astrology in the United States in the past decade? The same 1000 people were asked if they believed in astrology in 2000 and in 2010. The initial 1000 people were randomly selected from the United States. What would be the correct alternative hypothesis? (Let 2000 be group 1 and 2010 be group 2.) 

A nutritionist was interested in studying American’s opinions about healthy living. One hundred randomly selected people who were starting a diet were asked if they consumed at least 24 ounces of water a day. After six months, the same 100 people were asked if they consumed at least 24 ounces of water a day   Six months later “Yes, consumed at least 24 ounces of water” Six months later “No, did not” Initial Response “Yes, consumed at least 24 ounces of water” 25 20 Initial Response “No did not” 40 15   What is the sample proportion of people who responded “No, they did not consume at least 24 ounces of water” initially?

Do University of Florida students study more than 5 hours a day? A random sample of 100 students were asked how many hours they studied during a 24 hour period. The sample mean was 4.9 hours while the standard deviation was 5. What is the test statistic?

In 2014, the General Social Survey asked respondents if they felt that had completed a stress management program in the past 12 months. Out of a random selection of 151 Republicans (group 1), 21 said yes. Out of 83 Independents (group 2), 16 said yes. Suppose that a significance test for Ho:p1-p2=0 versus Ha:p1-p2 does not equal 0 was computed. What would be the pooled proportion?

What are fair employment practices (FEPs) as enacted by states and local governments?

Which part of a job description is psychologically important because it provides status to an employee?

Which of these term is defined as a systematic process of obtaining information about a job by determining its duties, tasks, or activities?