Question
Sample of 25 bags of candies is selected at random: The sample mean weight of the bags E is 2.5 ounces with sample standard deviation of 25 ounces. Find 95% confidence interval for the (true) mean weight for the bags of candies. (Assume the weights of the bags nonnally distributed: = Round vour answers t0 the nearest hundredth: Also inelude In YOut "sTCr statemient; 95%0 confident that
sample of 25 bags of candies is selected at random: The sample mean weight of the bags E is 2.5 ounces with sample standard deviation of 25 ounces. Find 95% confidence interval for the (true) mean weight for the bags of candies. (Assume the weights of the bags nonnally distributed: = Round vour answers t0 the nearest hundredth: Also inelude In YOut "sTCr statemient; 95%0 confident that
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The standard deviation of a normally distributed population is equal to $10 .$ A sample size of 25 is selected, and its mean is found to be $95 .$ a. Find an $80 \%$ confidence interval for $\mu$ b. What would the $80 \%$ confidence interval be for a sample of size $100 ?$ c. What would be the $80 \%$ confidence interval for a sample of size 25 with a standard deviation of 5 (instead of 10 )?
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The speeds in miles per hour of seven randomly selected qualifiers for the Indianapolis 50O (in 2012) are listed below. Estimate the mean qualifying speed with 90% confidence Round your answers to four decimal places_ 222.929 223.422 222.891 225.172 226.484226.240 224.037 Download Data...
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$$y^{\prime}=\sum_{n=1}^{\infty} \frac{(-1)^{n} 2 n}{2^{2 n}(n !)^{2}} x^{2 n-1}, \quad y^{\prime \prime}=\sum_{n=1}^{\infty} \frac{(-1)^{n} 2 n(2 n-1)}{2^{2 n}(n !)^{2}} x^{2 n-2}$$ $$\begin{aligned} x y^{\prime \prime}+y^{\prime}+x y &=\underbrace{\sum_{n=1}^{\infty} \frac{(-1)^{n} 2 n(2 n-1)}{2^{2 n}(n !)^{2}} x^{2 n-1}}_{k=n}+\underbrace{\sum_{n=1}^{\infty} \frac{(-1)^{n} 2 n}{2^{2 n}(n !)^{2}} x^{2 n-1}}_{k=n}+\underbrace{\sum_{n=0}^{\infty} \frac{(-1)^{n}}{2^{2 n}(n !)^{2}} x^{2 n+1}}_
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An AC series RLC circuit has a source EMF with an RMS voltage of 1S V and a frequency of 60 Hz The resistance is 50 Q, the inductance is 220 mH, and the capacitance is 47 pF. Note this circuit is NOT at resonance initially_ Find the following for this circuit: impedance; rms current; and average power: If the inductance is fixed but the capacitance can be adjusted to any value, what should the new capacitance be in order to bring the circuit into resonance with these components?2zc ,UQ1,Fi5v 60
An AC series RLC circuit has a source EMF with an RMS voltage of 1S V and a frequency of 60 Hz The resistance is 50 Q, the inductance is 220 mH, and the capacitance is 47 pF. Note this circuit is NOT at resonance initially_ Find the following for this circuit: impedance; rms current; and average pow...