The student in Mrs.Willows class are all reading the same novel. Four students create a graph of their reading rates, in words p
er minute, as shown below.
Which student reads the fastest?
A: Charlie
B: Sarah
C: Mason
D: Riley
Which student reads the fastest?
A: Charlie
B: Sarah
C: Mason
D: Riley
1 answer:
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Answer:
We conclude that the machine is under filling the bags.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 436.0 gram
Sample mean, = 429.0 grams
Sample size, n = 40
Alpha, α = 0.05
Population standard deviation, σ = 23.0 grams
First, we design the null and the alternate hypothesis
We use one-tailed(left) z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.