A sociologist is studying the age of the population in Blue Valley. Ten years ago, the population was such that 20% were under 20 years old, 11% were in the 20- to 35-year-old bracket, 32% were between 36 and 50, 24% were between 51 and 65, and 13% were over 65. A study done this year used a random sample of 210 residents. This sample […]
instructions in files.
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Help ASAP, let me know
I am lost with questions 3-5
3. 55% of cell phone users use their cell phones to access the Internet. A random sample of seven cell phone users was chosen.a. Find the mean, standard deviation, and variance for this probability distribution. State how you would use binompdf or binomcdf in your calculator to get the following probabilities. Then find the following probabilities:b. Exactly 3 people […]
The data below represent the number of days absent, x, and the final grade, y, for a sample of college students at a large university. Complete parts (a) through (e) below.
Question 1 The shape of a given distribution is normal with a mean of 75 and a standard deviation of 5.5. With these parameters, answer the associated question(s). For these parameters, transform a raw score of X = 90 into its corresponding z score. Round to the nearest tenths place if a fraction. The z score […]
USING SAS STUDIO ONDEMAND ONLY!!!! Step 1. Perform a merge of the demographics, secondhandsmoke, and healthstatus files. Show the results in your log and then run a proc contents to show the resulting file size and variables Step 2. Take a sample of 1500 records from the data file you created in #1. Show the […]
Please answer the questions on the attached file in full sentences.
