Mathematics, 28.05.2021 04:50 kenna162
A factory that manufactures bolts is performing a quality control experiment. Each object should have a length of no more than
12
centimeters. The factory believes that the length of the bolts exceeds this value and measures the length of
76
bolts. The sample mean bolt length was
12.07
centimeters. The population standard deviation is known to be
σ
=
0.28
centimeters.
What is the test statistic
z
?
What is the
p
-value?
Does sufficient evidence exist that the length of bolts is actually greater than the mean value at a significance level of
α
=
0.1
?
Answers: 2
Mathematics, 22.06.2019 01:30, nickeymcorrea
The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.
Answers: 1
Mathematics, 22.06.2019 03:40, greeneverette88cg
1/4x+5=3/4. i can't get access to the answer to this question! and, my request on "contact us" will not go
Answers: 2
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