5-1.5= 3.5 She has three and a half hours left watching TV.
Using the z-distribution, the confidence interval is given by: (11.95, 12.65).
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:
In which:
- is the sample mean.
- is the standard deviation for the population.
In this problem, we have a 90% confidence level, hence, z is the value of Z that has a p-value of , so the critical value is z = 1.645.
The other parameters are given as follows:
Hence the bounds of the interval are:
More can be learned about the z-distribution at brainly.com/question/25890103
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Answer:
Discount Final Price Each
1/3 off $ 19.95. $ 13.30
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I think its 13.30
Answer:
Is there suppose to be a picture?
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Answer:
linear because as x goes up by 1 f(x) goes up by exactly 1.1 for each one !
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