Which of the following can cause a spectral waveform in the lower extremity to change its shape to monophasic? 

Mrs. K. is scheduled for arterial testing due to pain in her legs.  All of the following risk factors suggest Mrs. K is a likely candidate for arterial disease EXCEPT:

During a penile duplex examination what is the normal post-injection response of the cavernous arteries? 

As you evaluate Doppler flow patterns in Mr. B, you document a PSV of 104 cm/s at the distal aorta, 218 cm/s at the take-off of the left common iliac artery (CIA), and 226 cm/s at the right proximal CIA.  What would your preliminary report include?

 In angiosperms, the ovule develops into what structure after fertilization?

6 (14 pts). A survey wants to know whether people in a city with ages 16-19 years old spend less than 2 hours on TV daily. A sample of 600 people with the ages 16-19 show the sample mean x– = 1.9 hours. Suppose the population standard deviation σ = 0.3 hour. (a) What is the population? What is the sample? (b) At α = 0.01 level of significance, determine whether there is evidence that that the population mean is less than 2 hours. (c) Identify the type of error for your conclusion. Find the probability of error and probability of confidence if it is type I error.

Which surgical procedure has the highest potential for problems such as arteriovenous fistulas and retained valves? 

What is the typical normal volume through an arteriovenous fistula used for hemodialysis? 

When you are ready, please go to Pearson MyStatLab and find “exam 1 practice run”. 

8 (14 pts). The percentage of customer satisfaction for a hotel was 73% last year. The manager wants to know whether there is any difference of customer satisfaction between this year and last year. A survey of 544 customers shows that 386 customers are satisfied. (a)  What is the population? What is the sample? (b) At α = 0.05 level of significance, determine whether there is evidence that the percentage of customer satisfaction this year is different from 73%. (c) Identify the type of error for your conclusion. Find the probability of error and probability of confidence if it is type I error.