Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.) b. Estimate the number of crimes for a city with 28 police officers. (Round your answer to the nearest whole number.)

State whether each situation has independent or paired (dependent) samples. a. A researcher wants to compare the salaries of men and women. She finds a random sample of 80 men and 80 women, and measures their salaries. b. A researcher wants to know whether professors with tenure have fewer office hours than professors without tenure. She observes the number of office hours for professors with and without tenure. a. Choose the correct answer below. O Independent samples O Paired (dependent) samples b. Choose the correct answer below. O Independent samples Paired (dependent) samples

The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other cities of similar size to determine the relationship between the number of police and the number of crimes reported. The chief gathered the following sample information. City Oxford Starksville Danville Athens ……….... Police 23 24 30 33 Number of Crimes 18 15 Click here for the Excel Data File 9 11 Number of crimes City Holgate Carey Whistler Woodville > Answer is complete but not entirely correct. 40.6081 X (90.0408) ► x Answer is complete and correct. 19✔ Police 24 20 19 27 a. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.) Number of Crimes 9 22 24 10 b. Estimate the number of crimes for a city with 21 police officers. (Round your answer to the nearest whole number.)

Consider the following sample data: 6, 10, 4, 3, 7, 9, 21, and 14.  What is the variance? Select one: a. 34.79 b. 33.56 c. 34.21 d. 34.02

A congressperson wants to come up with a single value to describe the prices of homes in their district. However, their district consists of a few homes that are extremely expensive compared to the others. Which descriptive statistic should they use? a. Range b. Mode c. Median d. Mean

Consider the following sets of sample data: A: $2.48 , $1.02 , $1.82 , $2.24 , $2.43 , $2.63 , $1.81 , $2.18 , $1.58 , $1.73 , $1.37 , $1.18 , $1.53 , $1.06 B: 97 , 134 , 139 , 126 , 120 , 143 , 141 , 142 , 113 , 99 , 129 Step 1 of 2: For each of the above sets of sample data, calculate the coefficient of variation, CV. Round to one decimal place. what is the cv for data set a and b

The city council of Pine Bluffs IS considering Increasing the number of pollice in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other citles of simllar size to determine the relationship between the number of pollice and the number of crimes reported. The chlef gathered the following sample Information. Number of Number of City Oxford Police Crimes City Holgate Carey Whistler Police Crimes 20 18 21 10 Starksville Danville 21 16 17 22 28 9 16 24 Athens 30 12 Woodville 25 10 PpictureClick here for the Excel Data File a. Determine the regression equation. (Negative amounts should be Indicated by a mlnus slgn. Round your answers to 4 declmal places.) ý = b. Estimate the number of crimes for a city with 24 pollce officers. (Round your answer to the nearest whole number.) Number of crimes c. Interpret the regression equation. For each policeman added, the number of crimes goes by one.

The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other cities of similar size to determine the relationship between the number of police and the number of crimes reported. The chief gathered the following sample information.   City Police   Number of Crimes   City   Police   Number of Crimes Oxford   13       13       Holgate       14       5   Starksville   14       12       Carey       11       16   Danville   20       5       Whistler       9       20   Athens   23       7       Woodville       18       6          Click here for the Excel Data Filea. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.)   b. Estimate the number of crimes for a city with 24 police officers. (Round your answer to the nearest whole number.)   c. Interpret the regression…

The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other cities of similar size to determine the relationship between the number of police and the number of crimes reported. The chief gathered the following sample information.   City Police Number of Crimes City Police Number of Crimes Oxford 15 19 Holgate 17 10 Starksville 17 16 Carey 11 23 Danville 25 8 Whistler 9 27 Athens 28 10 Woodville 21 10   Click here for the Excel Data Filea. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.)   b. Estimate the number of crimes for a city with 20 police officers. (Round your answer to the nearest whole number.)

Consider the following sets of sample data: A: 2.6, 3.8, 2.6, 4.0, 1.9, 1.8, 4.3, 2.2, 1.9, 2.0, 4.4, 4.4, 3.0, 3.8 B: $2.64, $2.18, $1.92, $2.31, $2.64, $1.40, $1.82, $1.68, $2.51, $1.29, $2.34 Step 1 of 2: For each of the above sets of sample data, calculate the coefficient of variation, CV. Round to one decimal place. Answer How to enter your answer (opens in new window) TV for Data Set A: CV for Data Set B: % %