Answer:
The answer is below
Explanation:
a)
Given that mean (μ) = $1500, standard deviation (σ) = $200, sample size (n) = 100
confidence (C) = 95% = 0.95
α = 1 - C = 1 - 0.95 = 0.05
α/2 = 0.05 / 2 = 0.025
The z score that corresponds with 0.475 (0.5 - 0.025) is 1.96. Therefore the margin of error (E) is:

The confidence interval = (μ ± E) = (1500 ± 39.2) = (1500 - 39.2, 1500 + 39.2) = (1460.8, 1539.2)
The confidence interval is between $1460.8 and $1539.2.
b) Given that mean (μ) = $1500, standard deviation for 100 samples = σ /√n = $200,
confidence (C) = 95% = 0.95

The confidence interval = (μ ± E) = (1500 ± 392) = (1500 - 392, 1500 + 392) = (1108, 1892)
The confidence interval is between $1108 and $1892.
Answer: B
Explanation:
With the options given, Johnny can only perform worse if he performs worse than his cumulative GPA and also if he performed less than he ever performed before. The last option about Johnny's performing worse than last semester might not necessarily have an effect on his GPA. A cumulative GPA is the total GPA Johnny has gotten since he started school. The last semester might be one of his best semesters and probably had a good result so getting a result slightly lower than his last semester might not necessarily mean there will be a reduction in his cumulative GPA. So option B is correct.
Answer:
A lot of businesses don't succeed due to money problems, or no customers.
Explanation:
Answer:
<u><em>format text increase or decrease the space around the text on a page </em></u>
<u><em>Explanation:</em></u>
Indeed, when using Word processing software like Microsoft word, it is possible to use the format text tool called line spacing to <em>increase or decrease the space around the text on a page.</em>
For example, in other to make a written text easily readable, a user may use the format text tool to increase or decrease the space around the text on a page.
This began to change when president Truman started a campaign called the trust buster
Truman passed endless laws like the meat inspection act and he made monopolies illegal.
Beatniks were also influential in Truman's time for writing novels exposing this reality.
Year 1900 to be approximate