The symbol in the figure below indicates which of these?
A) Battery
B) Ground
C) Capacitor
D) Diode
B) Ground
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Sunflowers are used mainly as a(n):
a. floral arrangement c. oil crop b. landscape plant d. fast-food snack
Whether the root of the weld has excessive root reinforcement can be determined by ____.
A. visual inspection B. x-ray testing C. cutting a cross-section of the weld D. destructive testing
Oven thermostats were tested by setting them to350°F and measuring the actual temperature of the oven. In a sample of 67 thermostats, the average temperature was 348.2°F and the standard deviation was 5.1°F.
a. Find a 90% confidence interval for the mean oven temperature. b. Find a 95% confidence interval for the mean oven temperature. c. What is the confidence level of the interval(347.5, 348.9)? d. How many thermostats must be sampled so that a 90% confidence interval specifies the mean to within ±0.8°F? e. How many thermostats must be sampled so that a 95% confidence interval specifies the mean to within ±0.8°F?
An inside measurement can be taken with a tape measure by _____
a. adding the length of the tape measure case b. subtracting the length of the tape measure case c. removing the tape from the case d. adding the thickness of the tape hook