Mathematics, 21.04.2020 06:23 moncho6222
A smelt is a type of small fish. Smelt lengths have a standard deviation of 2 cm. A simple random sample of 30 smelts has a sample mean length of 7.5 cm.
The null hypothesis is H 0 : mu=8.5 cn against : u < 8.5 cm, where u is the mean length of all smelts. What can be concluded from the test ? Use alpha=0.01 .
A reject the null hypothesis
B cannot do test without knowing the value of u
C need to use a larger value of a
D accept the null hypothesis
Answers: 3
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A smelt is a type of small fish. Smelt lengths have a standard deviation of 2 cm. A simple random sa...
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