8. Kleck and Kovandzic (2009) examined whether the level of homicide in a particular city affected the likelihood that people in that city would own firearms. They measured homicide as the number of homicides that took place in the city in 1 year divided by the total city population. They measured handgun ownership as whether survey respondents said they did or did not own a gun. a. Identify the independent variable in this study. b. Identify the level of measurement of the independent variable. c. Identify the dependent variable in this study. d. Identify the level of measurement of the dependent variable. e. Identify the unit of analysis. Hint: this study has two! I

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identify which data sets you would display with a bar graph and which you would display with a histogram

Questions 2 & 3 please

Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

CHART ATTACHED. PLEASE USE EXCEL FORMULAS FOR ME TO FOLLOW WHEN APPLICABLE   The Standard Issue Test Prep company offers an ACT prep course designed to help students improve their scores on the ACT exam.  A mock exam is given at the beginning of the course to see where students are starting from.  A sample of 27 students' scores are taken and given below:       Using this data, answer questions below.  CAUTION!  If you are using your calculator for Parts A and B, double-check that you entered the data in your calculator correctly.  One minor mistake in data entry can lead to a drastically different answer!   Find the mean: ___________________.  Round your answer appropriately. Find the standard deviation: ___________________.  Round your answer appropriately.   Assuming the population is normally distributed, construct a 95% confidence interval for the mean mock exam.  Show all relevant work and follow these expectations: Your work should be easy to read and follow.  Use…

Kindly give proper explanation How many participants had a heart rate between 130 and 150 bpm?

Briefly discuss the following with relevant examples. Population Parameter vs Sample Statistic Descriptive Statistics vs Inferential Statistics scales of measurement and importance of them in research

Subject : Basic Statistics 6. I've posted an image of the question. Thank you.