Question

Part 1

The Striving for Perfection Urgent Care Center feels that its patients wait time is too long.
The staff has noticed that increasing numbers of people are waiting longer in the waiting room.
The national benchmark performance is 90 minutes or less from the time the customer arrives
to the time the customer is treated and discharged.
Part I
The staff decides to examine the time it takes for all patients to move through their service process
on two successive days (columns A & B of the data tab = one sample).
Question 1 (2 points): What type of variable did they choose to examine? Qualitative or quantitative?
Question 2 (2 points): Is the variable categorical, discrete or continuous?
Question 3 (2 points): How many observations did they collect?
Question 4 (2 points): What type of sampling did they use?
	Random, systematic, stratified, clustered, or convenience.
Question 5 (20 points): Summarize these data graphically and using data description techlniques.
Question 6 (10 points) Are there any outliers in these data? Justify your answer.
Question 7 (20 points): Is the clinic meeting the national benchmark time?
	(Test the hypothesis that the clinic's population mean is less than 90 minutes.
	Use a 95% confidence level. Assume the variable is normally distributed.
	State whether the assumptions for the test are met or not
	Include the six step process described in the Chapter 9 Quiz.)

Col. G Col. E Col. D Col. B Column A Sample: elapsed times before Sample elapsed times after process Urgent Care facility patient times in minutes, collected on 2 successive da Type of process servic improved change 65 147 190 200 147 190 200 90 90 179 2 2 30 30 125 125 58 143 30 143 2 179 97 95 179 125 143 240 95 95 24 270 120 150 166 130 58 90 240 240 270 120 150 166 130 156 136 178 146 245 243 124 270 120 150 166 130 156 136 178 146 245 243 124 30 125 3 143 30 57 4 4 4 90 240 2 270 120 150 166 59 75

Answer 1

1. They chose a quantitative variable that is time which can be quantified.

2. The variable is continuous because time can take any value in an interval.

3. They collected 44 observations.

4. They chose convenience sampling because they examined all patients.