In Problem 21 of Chapter 12, a student conducted an experiment on 25 schizophrenic patients to test the effect of a new technique on the amount of time schizophrenics need to stay institutionalized. The results showed that under the new treatment, the 25 schizophrenic patients stayed a mean duration of 78 weeks, with a standard […]
This is the assignment i need completed. i need the whole assignment checked for any errors. It has already been completed so there shouldn’t be any work needed i just need to make sure all the answers are correct. I do however need some working out shown for around 14 questions (these questions are highlighted […]
Credit Scores Use the results of Problem 12 from Section 14.1 to answer the following questions: (a) Predict the mean interest rate of all individuals whose credit score is 730. (b) Construct a 90% confidence interval for the mean interest rate of all individuals whose credit score is 730. (c) Predict the interest rate of Kaleigh, whose credit score […]
Prior to beginning work on this discussion, read Chapter 5: Statistical Reasoning and Chapter 6: Putting Statistics to Work in your course text. Research a news article or website that provides data sets and statistical report information such as the United States Census Bureau (Links to an external site.), the U.S. Energy Information Administration (Links to […]
7 Suppose that you work part-time at a bowling alley that is open daily from noon to midnight. Although business is usually slow from noon to 6 PM, the owner has noticed that it is better on hotter days during the summer, perhaps because the premises are comfortably air-conditioned. The owner shows you some data […]
The Common Core Learning Standards set the bar for what is to be taught at each grade level. The Progressions help define connections to learning for students. Choose one of the following for your assignment this week. 1. Choose a CCLS math standard for your grade level (Grade 3). Refer to the Progressions document and […]
You work for a pharmacuticals company as a statistical process analyst. Your job is to analyze processes and make sure they are in statistical control. In one process, a machine is supposed to add 9.8 mg of a compound to a mixture in a vial. (assume this process can be approximated by a normal distribution.) […]
1. The following data were collected in a clinical trial evaluating a new compound designed to improve wound healing in trauma patients. The new compound was compared against a placebo. After treatment for 5 days with the new compound or placebo the extent of wound healing was measured and the data are shown below. Percent […]
1. Computers in some vehicles calculate various quantities related to performance. One of these is the fuel efficiency, or gas mileage, usually expressed as miles per gallon (mpg). For one vehicle equipped in this way, the mpg were recorded each time the gas tank was filled, and the computer was then reset.13 Here are the […]
STATISTICS Descriptive In an asymmetric unimodal distribution , Median lies (3) A. Above Mean B. Between Mode and Mean C. Above third quartile D. Below Mean E. Above Mode Descriptive statistics belong to the following four categories according to the property of the sample EXCEPT (3) A. Statistics of location […]
