Answer:
118
Step-by-step explanation:
180 - 64 - 45 = 62
180 - 62 = 118
Using the t-distribution, it is found that:
a. The <u>margin of error</u> is of 4.7 homes.
b. The 98% confidence interval for the population mean is (19.3, 28.7).
The information given in the text is:
- Sample mean of
. - Sample standard deviation of
. - Sample size of
.
We are given the <u>standard deviation for the sample</u>, which is why the t-distribution is used to solve this question.
The confidence interval is:

The margin of error is:

Item a:
The critical value, using a t-distribution calculator, for a two-tailed <u>98% confidence interval</u>, with 23 - 1 = <u>22 df</u>, is t = 2.508.
Then, the <em>margin of error</em> is:

Item b:
The interval is:


The 98% confidence interval for the population mean is (19.3, 28.7).
A similar problem is given at brainly.com/question/15180581
Answer:
65 i believe
Step-by-step explanation:
first order the data from least to greatest. Then subtract the smallest value from the largest value in the set.
Answer:
slope = -2
Step-by-step explanation:
y2 - y1 over x2 - x1
so do
7-3/ 2-4 = your slope
4/-2
12
13
78
97
65
90
70
these are numbers with 2 digits