Answer:
60 minutes or 1 hour
Step-by-step explanation:
My picture is my worked out solution :)
Question 7 (3 points) This scatter plot shows the number of trees planted and the amount of time that has passed (in hours). Bas
ed on the information in the scatter plot, what is the best prediction for the number of trees that will be planted after 12 hours? Question 7 options:
13 trees
18 trees
7 trees
4 trees
13 trees
18 trees
7 trees
4 trees
1 answer:
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Using the t-distribution, it is found that the 90% confidence interval is (48.3, 48.7), hence 48.8 is not within the interval.
<h3>What is a t-distribution confidence interval?</h3>The confidence interval is:
In which:
is the sample mean.
- t is the critical value.
- n is the sample size.
- s is the standard deviation for the sample.
The critical value, using a t-distribution calculator, for a two-tailed <u>90% confidence interval</u>, with 225 - 1 = 224 df, is t = 1.6517.
The other parameters are given as follows:
.
Hence the bounds of the interval are given by:
The 90% confidence interval is (48.3, 48.7), hence 48.8 is not within the interval.
More can be learned about the t-distribution at brainly.com/question/16162795
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