Find the measure of y. 145° 130° 129° 134°
1 answer:
<h2>★<u>Answer</u></h2>
As We know a <u>heptagon</u> has <u>7 sides</u><u>.</u> So , we take the hexagon's sum of interior angles and add 180 to it getting us, 720+180=900 degrees.
<h3 /><h3>So Here,</h3>⇢ 129° + 116 °+ 120° +130° + 135 °+ 125° + y = 900°
⇢755° +y = 900°
⇢y = 900 °- 755°
⇢y = 145°
<h2>Hence, The Answer is <u>145°</u></h2><u></u>
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Answer:
The 95% confidence interval of the true mean.
(29.4261 ,36.9739)
Step-by-step explanation:
<u>Step :- (i)</u>
Given sample size 'n' =15
sample of the mean x⁻ = 33.2
The standard deviation of the sample 'S' = 8.3
<u>95% of confidence intervals</u>
<u></u><u></u>
<u>Step:-(ii)</u>
<u>The degrees of freedom γ=n-1 = 15-1=14</u>
The tabulated value t = 1.761 at 0.05 level of significance.
now substitute all possible values, we get
After calculation , we get
(33.2-3.7739 , 33.2+3.7739
(29.4261 ,36.9739)
<u>Conclusion</u>:-
the 95% confidence interval of the true mean.
(29.4261 ,36.9739)