In a simple random sample of 52 electronic components produced by a certain method, the mean lifetime was 1,050 hours. assume that component lifetimes are normally distributed with population standard deviation 193 hours. what is the upper bound of the 95% confidence interval for the mean lifetime of the components?

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.

10.4 inches

step-by-step explanation:

2x2x2.6

explanation:

step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh