Answer:
9×9×9×9×9×9
Step-by-step explanation:
Expanded form is a larger version of a simplified term
is 9 six times
To model some data, Anne ran a linear regression and found the regression equation to be y=0.554x-0.507.
1 answer:
Answer:
See Explanation
Step-by-step explanation:
Given
The question is incomplete; however, a possible question could be to interpret the given equation.
The equation is given in slope intercept form i.e.
Where
So, by comparing:
to
<em>Hence, the slope of the regression is 0.554 and the y intercept of -0.507</em>
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Answer:
Step-by-step explanation:
Hello!
X: number of absences per tutorial per student over the past 5 years(percentage)
X≈N(μ;σ²)
You have to construct a 90% to estimate the population mean of the percentage of absences per tutorial of the students over the past 5 years.
The formula for the CI is:
X[bar] ± *
⇒ The population standard deviation is unknown and since the distribution is approximate, I'll use the estimation of the standard deviation in place of the population parameter.
Number of Absences 13.9 16.4 12.3 13.2 8.4 4.4 10.3 8.8 4.8 10.9 15.9 9.7 4.5 11.5 5.7 10.8 9.7 8.2 10.3 12.2 10.6 16.2 15.2 1.7 11.7 11.9 10.0 12.4
X[bar]= 10.41
S= 3.71
[10.41±1.645*]
[9.26; 11.56]
Using a confidence level of 90% you'd expect that the interval [9.26; 11.56]% contains the value of the population mean of the percentage of absences per tutorial of the students over the past 5 years.
I hope this helps!