What we are looking for is the confidence interval.
Given:
Sample it is denoted by n = 10
Mean = 80
Standard deviation = 12
Confidence Interval = 99%
Now compute for the margin of error, the formula is Za/2 * σ/√(n)
A 99% level of confidence has a critical value of zα/2 = 2.58.
The standard error is σ/√(n) = 3.162
Multiply 2.58 by 3.162 = 9.8 is the margin of error.
The formula for confidence interval is x̅ ± Za/2 * σ/√(n)
= 80 ± 9.8
= 70.2 < x< 89.8
(A) They believed black schools weren't equal to white schools, so the schools should be integrated.
This is the correct answer I got. I hope it helps. :)
<span>Maximillen Robespierre was the extreme radical leader who
started the reign of terror. The reign of terror lasted from 5th
September 1793 to 28th July 1794. This is the period that is known
for its great violence. The fight was between two political groups named Jacobins
and the Girondins. Numerous people were executed by both the factions. The people
that stood against the revolution got executed. The number of people executed
or killed numbered in thousands. It was the time of the French revolution. </span>
Explanation:
Through our work with companies across different industries, we found about 10 to 20 percent of the new product and services succeed that is by our definitions they remain in the market generating profit to the company.
<u>There are ten reasons why a new product fails:
</u>
- Marketers assess the market climate inadequately
- The wrong group was targeted
- A weak positioning strategy was used
- A less than the optimal configuration of attributes and benefits were selected
- A questionable pricing strategy was implemented
- The ad campaign generated
- Cannibalization depressed corporate profits
- Over-optimization about the marketing plan
- Poor implementation of the marketing plan
- The product pronounced dead and buried too soon.