Mathematics, 14.12.2019 02:31 nestergurl101
In may, the fill weights of 6-pound boxes of laundry soap had a mean of 6.13 pounds with a standard deviation of 0.095. the goal was to decrease the standard deviation. the company decided to adjust the filling machines and then test h0: σ = 0.095 against h1: σ < 0.095. in june, a random sample of size n = 20 yielded [(x)] = 6.10 and s = 0.065.1. what is the value of your test statistic? 2.what is the critical value for the test statistic at an α = 0.05 significance level? 3. what is the approximate p-value of the test?
Answers: 3
Mathematics, 21.06.2019 18:40
What value of x is in the solution set of 4x – 12 s 16 + 8x?
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Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left
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Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
In may, the fill weights of 6-pound boxes of laundry soap had a mean of 6.13 pounds with a standard...
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