Answer:
4207
Step-by-step explanation:hope that helped you
Answer:
5 hours are the answer long will take her to go the remaining
A, B and D. All of the numbers are multiplied by a if that makes sense.
The answer is 0.07
have a good day
Answer:
<em> The 99% confidence interval for the mean repair cost for the VCRs</em>
(65.801, 85.199)
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Mean of the sample(x⁻) = $75.50
Given the standard deviation of the sample (S) = $18.07
Given the size of the sample 'n' = 22
Degrees of freedom = n-1 =22-1 =21
critical value t₍₀.₀₁, ₂₁₎ = 2.5176
<em> The 99% confidence interval for the mean repair cost for the VCRs</em>
![(x^{-} - t_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} +t_{0.01} \frac{S.D}{\sqrt{n} })](https://tex.z-dn.net/?f=%28x%5E%7B-%7D%20-%20t_%7B0.01%7D%20%5Cfrac%7BS.D%7D%7B%5Csqrt%7Bn%7D%20%7D%20%2C%20x%5E%7B-%7D%20%2Bt_%7B0.01%7D%20%5Cfrac%7BS.D%7D%7B%5Csqrt%7Bn%7D%20%7D%29)
![(75.50 - 2.5176 \frac{18.07}{\sqrt{22} } , 75.50 +2.5176 \frac{18.07}{\sqrt{22} })](https://tex.z-dn.net/?f=%2875.50%20-%202.5176%20%5Cfrac%7B18.07%7D%7B%5Csqrt%7B22%7D%20%7D%20%2C%2075.50%20%2B2.5176%20%5Cfrac%7B18.07%7D%7B%5Csqrt%7B22%7D%20%7D%29)
( 75.50 - 9.699 , 75.50 + 9.699 )
(65.801, 85.199)
<u><em>Final answer:-</em></u>
<em> The 99% confidence interval for the mean repair cost for the VCRs</em>
(65.801, 85.199)