All branch circuits supplying 125-volt, 15- and 20-ampere outlets and devices in residential kitchens, family rooms, living rooms, dining rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, laundry areas, or similar rooms must be protected by a(n) __________
a. fuse
b. circuit breaker
c. GFCI device
d. AFCI device
d. AFCI device
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Stanley, Inc. makes self-clinching fasteners for stainless steel applications. It expects to acquire new time-saving punching equipment 4 years from now. If the company sets aside $125,000 each year, determine the amount available in 4 years at an earning rate of 10% per year.
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What causes red leg and what are the signs that indicate an amphibian has contracted this disease?
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The article “Arsenic and Mercury in Lake Whitefish and Burbot Near the Abandoned Giant Mine on Great SlaveLake” presents measurements of arsenic concentrations in fish found in Northern Canada.
a. In a sample of 8 whitefish caught in Yellowknife Bay, the mean arsenic concentration in the liver was 0.32 mg/kg, with a standard deviation of 0.05 mg/kg. Find a 95% confidence interval for the concentration in whitefish found in Yellowknife Bay. b. In a sample of 8 whitefish caught in Baker Pond, the mean arsenic concentration in the liver was 0.55 mg/kg, with a standard deviation of 0.36 mg/kg. Should the Student’s t distribution be used to find a 95% confidence interval for the concentration in whitefish found in Baker Pond? If so, find the confidence interval. If not, explain why not.