When you roll a number cube, there are 6 possible _____.
2 answers:
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Answer:
The 95% confidence interval for the population mean amount spent on groceries by Connecticut families is ($73.20, $280.21).
Step-by-step explanation:
The data for the amount of money spent weekly on groceries is as follows:
S = {210, 23, 350, 112, 27, 175, 275, 50, 95, 450}
<em>n</em> = 10
Compute the sample mean and sample standard deviation:
It is assumed that the data come from a normal distribution.
Since the population standard deviation is not known, use a <em>t</em> confidence interval.
The critical value of <em>t</em> for 95% confidence level and degrees of freedom = n - 1 = 10 - 1 = 9 is:
*Use a <em>t</em>-table.
Compute the 95% confidence interval for the population mean amount spent on groceries by Connecticut families as follows:
Thus, the 95% confidence interval for the population mean amount spent on groceries by Connecticut families is ($73.20, $280.21).
ANSWER
EXPLANATION
To find a positive angle that is coterminal with
We add multiples of 2π until we get a positive angle that is less than one revolution,
We add to obtain,
This simplifies to,
This is the first positive angle that is coterminal with
and is less than one revolution.
EXPLANATION
To find a positive angle that is coterminal with
We add multiples of 2π until we get a positive angle that is less than one revolution,
We add to obtain,
This simplifies to,
This is the first positive angle that is coterminal with
and is less than one revolution.