A community psychologist selects a sample of 16 local police officers to test whether their physical...

A community psychologist selects a sample of 16 local police officers to test whether their physical endurance is better than the median score of 72. She measures their physical endurance on a 100-point physical endurance rating scale. Performance Scores 87 83 78 74 51 88 84 75 89 82 61 86 76 58 77 80 Based on the data given above, compute the one-sample sign test at a 0.05 level of significance. x=

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community psychologist selects a sample of 16 local police officers to test whether their physical endurance...

community psychologist selects a sample of 16 local police officers to test whether their physical endurance is better than the median score of 74. She measures their physical endurance on a 100-point physical endurance rating scale. Performance Scores 92 54 53 63 96 94 95 78 72 84 81 75 88 90 79 86 Based on the data given above, compute the one-sample sign test at a 0.05 level of significance. x =

1. A community psychologist selects a sample of 16 local police officers to test whether their...

1. A community psychologist selects a sample of 16 local police officers to test whether their physical endurance is better than the median score of 72. She measures their physical endurance on a 100-point physical endurance rating scale. Performance Scores 56 83 91 57 86 84 70 82 80 95 73 78 51 90 77 75 Based on the data given above, compute the one-sample sign test at a 0.05 level of significance. x = 2. A professor has a...

For a sample of 900 police officers at a local police department, a researcher believes there...

For a sample of 900 police officers at a local police department, a researcher believes there is a relationship between “number of arrests per month” and “police use of force.” Using the following data, test the null hypothesis at the .01 level of significance that police use of force does not differ by the number of arrests per month that an officer makes. In so doing, identify: (1) the research and null hypothesis, (2) the critical value needed to reject...

2. For a sample of 900 police officers at a local police department, a researcher believes...

2. For a sample of 900 police officers at a local police department, a researcher believes there is a relationship between “number of arrests per month” and “police use of force.” Using the following data, test the null hypothesis at the .01 level of significance that police use of force does not differ by the number of arrests per month that an officer makes. In so doing, identify: (1) the research and null hypothesis, (2) the critical value needed to...

The sample birth weight of 16 infants in a local community is 7.5 lbs with a...

The sample birth weight of 16 infants in a local community is 7.5 lbs with a standard deviation of 1.5 lbs. A census has revealed that national birth weight is 6,5 lbs. 1. Compute the test statistic to test if the average birth weight in the local community differs from that of the national average. Leave your answer correct up to 3 decimal places. 2. State the critical value(s) to test the above hypothesis at alpha=.01 a. ± 2.947 b....

1. Chi-square Test of Independence A political psychologist is interested in whether the community a person...

1. Chi-square Test of Independence A political psychologist is interested in whether the community a person lives in is related to that person's opinion on an upcoming water conservation ballot initiative. The psychologist surveys a random sample of 96 people by phone from three different communities, with the results shown in the table below. At a 10% significance level, is there evidence that opinion on the water conservation ballot initiative depends on community membership? Case Processing Summary Cases Valid Missing...

The data below shows the score on a promotion test given to police officers and the...

The data below shows the score on a promotion test given to police officers and the number of hours studied. Hours Studied Score on promotion test 0 0 1 1 2 1 3 2 4 5 6 6 12 8 16 10

The local police department is considering two types of sidearms for its officers. The Glock 40...

The local police department is considering two types of sidearms for its officers. The Glock 40 costs $400 apiece and has a life of 4 years. The other option is a Sauer 45 that costs $800 and has a 12-year life. The Sauer pistol has a residual value of $200 at the end of its 12-year service life. Determine the better choice using the PW method and a study period of 8 years. The department uses a MARR of 5%....

A random sample of 17 police officers in Oak Park has a mean annual income of...

A random sample of 17 police officers in Oak Park has a mean annual income of $35,800 and a standard deviation of $7,800. In Homewood, a random sample of 18 police officers has a mean annual income of $35,100 and a standard deviation of $7,375. Test the claim at α = 0.01 that the mean annual incomes in the two cities are not the same. Assume the population variances are equal. a. Write down the type of test you will...

1. Can you discuss two ways police officers can promote positive relationships with community members of...

1. Can you discuss two ways police officers can promote positive relationships with community members of varying races, ethnicities, national origins and immigration statuses? 2. a) Can you address two ways that race, racism, and racial inequalities in the education system influence race, racism and racial inequalities in the economic system in the U.S. today? b) Why do these issues matter? Discuss two long-term consequences of the things you talked about in part a. 3. Can explain why it’s important...

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