Answer:
A
Step-by-step explanation:
Given:
<span>random sample of 520 adults
mean was 150
standard deviation was 4.5.
reported with a 95% confidence level, and the confidence interval for the study was 150 ± 0.39.
The range of </span><span>values that shows the confidence interval for the study is </span><span>149.61 to 150.39
150 + 0.39 = 150.39
150 - 0.39 = 149.61</span>
Answer:
The correct option is d.
Step-by-step explanation:
For a question to be answered by an experiment, some conditions need to be satisfied.
An experiment must follow qualitative analysis. In a sense, an experiment must be able to be quantified. Let's take an example:
Suppose a school wants to screen candidates for an entrance level. The candidates must be of a specified number. The exam is taken. The exam scores are tabulated and distributed according to the statistical distribution. In this way, the quantitative distribution in the candidates pass mark cab be quantified.
In the question, the correct option will be d. The program can be tested quantitatively (and generating data).
Answer:
Simplified version
Step-by-step explanation:
× 
The first step would be to add together what is in the parenthesis. Make sure that both fractions have the same denominator. In this problem they don't, so we have to find the least common number that they both have. The number here would be 15. 5 × 3 = 15 and vise versa.
×
×
× Multiply straight across (denominators do <u>NOT</u> need to be the same)
