At the local college, a study found that students earned an average of 9.1 credit hours per semester. A sample of 96 students wa
1 answer:
Answer: 9.1 credit hours per semester.
Step-by-step explanation:
- The sample size
is the best point-estimate for the true population mean
( if true population mean is unknown).
Given : At the local college, by taking a sample of 96 students , study found that students earned an average of 9.1 credit hours per semester.
i.e. credit hours per semester.
Then, the best point estimate for the average number of credit hours per semester for all students at the local college should be sample mean
i.e. credit hours per semester.
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The function f(x) is less than 0 at x < -1.8
<h3>How to analyze the graph?</h3>The missing graph is added as an attachment
The interval where f(x) < 0 are the intervals where the y value of the function is less than 0.
This in other words, represent the negative y-axis
From the attached graph, the function f(x) is less than 0 at x < -1.8.
This extends till x = infinity
Hence, the function f(x) is less than 0 at x < -1.8
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