Answer:
7.2ft
Step-by-step explanation:
Using the t-distribution, it is found that the 95% confidence interval for the population mean rating for Miami is (5.73, 6.95).
<h3>What is a t-distribution confidence interval?</h3>
The confidence interval is:
In which:
- is the sample mean.
- s is the standard deviation for the sample.
The critical value, using a t-distribution calculator, for a <u>two-tailed 95% confidence interval</u>, with 50 - 1 = <u>49 df</u>, is t = 2.0096.
Considering the given sample, the other parameters are given as follows:
Hence, the bounds of the interval are:
More can be learned about the t-distribution at brainly.com/question/16162795
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Answer:
x ≤ 2
Step-by-step explanation:
If we say the number line represents values of the variable x, then there is a solid dot at the value x=2. That means x = 2 is included in the inequality being represented.
The solid black arrow extends to the left of x = 2, including all values that are less than 2. Thus that arrow represents all values <em>less than or equal to 2</em>. The inequality is written ...
... x ≤ 2
Answer:
Step-by-step explanation:
3,12,48,192
it is an G.P.
r=12/3=4
an=a1 r^{n-1}
a10=3 (4)^{10-1}=3(4)^9=3×262144=786432