Questions asked
Two fuel additives are being tested to determine their effect on gasoline mileage. Seven cars were tested with additive 1 and seven cars were tested with additive 2. The following data show the miles per gallon obtained with the two additives. Additive 1 Additive 2 27.3 28.7 28.4 27.9 29.1 35.4 26.7 31.1 28.2 36.2 28.6 28.7 27.5 29.7 Use $\alpha = 0.05$ and the MWW test to see whether there is a significant difference between gasoline mileage for the two additives. Use Table 1 of Appendix B. What is the mean and standard deviation of the normal distribution that can be used for this statistical test? Mean (to 1 decimal) Standard deviation (to 4 decimals) What is the value of the test statistic (to 2 decimals)? Enter negative value as negative number. What is the $p$-value for the hypothesis test (to 4 decimals)? Conclude: The two populations of fuel additives are not identical. The two populations of fuel additives are identical.
Question 7 0.5 pts Which of the following surveillance attributes is related to how many of the reported cases meet the case definition? O Flexibility O Sensitivity O Predictive Value Positive O Representativeness O Data Quality
Dahlia has been convicted of child molestation. She has which paraphilic disorder? - Hypersexual disorder - Pedophilic disorder - Bisexuality - Sexual masochism disorder
mkdir xyz make the directory xyz cd xyz change directory, down into xyz cd .. go up one directory level cd ~ go to your home directory cd ~dannellys2 go to dannelly's home directory ls list the contents of current directory ls -a directory listing, including all hidden files ls -l directory listing, show permission, edits dates, etc. ls -al really long directory listing File Manipulation cp file1 file2 make a copy of filel named file2 cat myfile show contents of myfile more myfile show contents of myfile one screen at a time head myfile show the top 10 lines of myfile rm myfile remove myfile (delete it permanently) rm * remove all files in current directory rm -i * interactive removal - ask yes/no for each file ls > bob redirect directory listing into the file named bob Misc Commands who users logged into this machine date today's date cal calendar (many options) man -k calendar list manual pages related to calendar man cal manual page for the "cal" command exit logout of system logout logout of system ctrl-d logout of system ctrl-c kill the running program
Question 13 (1 point) Consider "Overthrowing the 'Jim Crow' laws was a good thing because those laws sanctioned racial discrimination in the American South, and racial discrimination is wrong." This is ... A) A deductive argument with a moral conclusion B) An inductive argument with a moral conclusion C) A deductive argument with a non-moral conclusion D) An inductive argument with a non-moral conclusion
You are analyzing the cost of debt for a firm. You know that the firm's 14-year maturity, 7.0 percent coupon bonds are selling at a price of $654.98. The bonds pay interest semiannually. If these bonds are the only debt outstanding for the firm, answer the following questions. (a1) Your answer is incorrect. What is the current YTM of the bonds? (Round final answer to 2 decimal places, eg. 15.25%) Current YTM for the bonds
In the film about memory, a subjects hand was immersed in ice water during a memory task. What was the outcome during the test phase? a. The subject showed better memory for everything. b. The subject showed better memory for the emotionally arousing slides only. c. The subject showed no affect of the ice water treatment. d. The subject showed poorer memory as a result of the stressor.
Given $f(x,y) = x^3 + y^3 - 24xy + 15$, $S = \{(x,y): 0 \le x \le 9, 0 \le y \le 9\}$, match the point on the left with the classification on the right. (9, 0) ($\sqrt{72}$, 9) (8, 8) A. Global Max B. Global Minimum C. Neither
Q2. Employ most accurate inverse interpolation to determine the value of x that corresponds to $f(x) = 0.85$ for the following data. \begin{tabular}{|c|c|c|c|c|c|} \hline x & 0 & 1.5 & 2.5 & 3.5 & 4.5 & 5.5 \\ \hline $f(x)$ & 0 & 0.5 & 0.8 & 0.9 & 0.941176 & 0.961538 \\ \hline \end{tabular} Use inverse interpolation with cubic interpolation and bisection (3 iterations).
Suppose $N_0 = 10^{-6}$ W/Hz and the baseband data bandwidth is given by $B = R = 1/T$ Hz. For the following bandwidths, find the required signal powers, $A^2$, to give a bit error probability of $10^{-4}$ along with the allowed data rates: (a) 5 kHz; (b) 10 kHz; (c) 100 kHz; (d) 1 MHz. A receiver for baseband digital data has a thresh- hold set at $\epsilon$ instead of zero. Rederive (9.8), (9.9), and (9.11) taking this into account. If $P(+A) = P(-A) = \frac{1}{2}$, find $E_b/N_0$ in decibels as a function of $\epsilon$ for $0 \le \epsilon/\sigma \le 1$ to give $P_E = 10^{-6}$, where $\sigma^2$ is the variance of N.
