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Mathematics, 30.07.2019 03:20 oof40
Amachine that is programmed to package 1.90 pounds of cereal is being tested for its accuracy. in a sample of 26 cereal boxes, the mean and standard deviation are calculated as 2.02 pounds and 0.24 pound, respectively. use table
a. select the null and the alternative hypotheses to determine if the machine is working improperly, that is, it is either underfilling or overfilling the cereal boxes.
a) h0: µ = 1.90; ha: µ ≠1.90
b) h0: µ ≤ 1.90; ha: µ > 1.90
c) h0: µ ≥ 1.90; ha: µ < 1.90
b. calculate the value of the test statistic. (round your intermediate calculations to 4 decimal places and final answer to a whole number.)
c-1. approximate the p-value.
a) 0.02 < p-value < 0.05
b) 0.01< p-value < 0.02
c) 0.05 < p-value < 0.10
c-2. what is the conclusion at the 10% significance level?
a) do not reject h0 since the p-value is smaller than α.
b) do not reject h0 since the p-value is greater than α.
c) reject h0 since the p-value is smaller than α.
d) reject h0 since the p-value is greater than α.
d-1. calculate the critical value(s) at a 10% level of significance. (round your answer to 3 decimal places.)
d-2. can you conclude that the machine is working improperly?
-no
-yes
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Amachine that is programmed to package 1.90 pounds of cereal is being tested for its accuracy. in a...
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