The following data represent crime rates per 1 000
Last updated: 2/8/2024
The following data represent crime rates per 1 000 population for a random sample of 46 neighborhoods in a particular city 53 7 54 4 36 8 25 7 52 9 64 9 31 6 65 3 42 0 77 8 123 7 65 8 93 0 56 6 58 8 67 7 78 9 33 6 74 4 44 7 132 4 70 4 87 9 55 6 154 5 85 1 77 9 84 4 23 7 37 8 41 4 66 0 69 3 34 8 24 5 32 2 77 4 27 8 68 9 74 1 72 0 104 4 62 0 59 2 76 1 38 9 LA USE SALT a Use a calculator with mean and sample standard deviation keys to find the sample mean x and sample standard deviations as crimes per 1 000 people Round your answers to four decimal places crimes per 1 000 people crimes per 1 000 people crimes per 1 000 people b Let us say the preceding data are representative of the population crime rates in neighborhoods in this city Compute an 80 confidence interval for u the population mean crime rate as crimes per 1 000 people for all neighborhoods in this city Enter your answer in the form lower limit to upper limit Include the word to Round your numerical values to one decimal place crimes per 1 000 people e Compute a 99 confidence interval for the population mean crime rate as crimes per 1 000 people for all neighborhoods in this city Enter your answer in the form lower limit to upper limit Include the word to Round your numerical values to one decimal place