Find the difference in the mean of the two test groups. Would difference in means be a good statistic for determining statistical significance in this situation?

A demand function is p=400-2q, where q is the quantity of the good sold for price $p. Find an expression for the total revenue, R, in terms of q.

Economy worries. During the week of April 15, 2013, a Gallup Poll requested 1500 U.S. adults, aged 18 or over, how they rated economic conditions. Only $17 \%$ rated the economy as Excellent/Good. Make a $95 \%$ confidence interval for the true proportion of Americans who rated the U.S. economy as Excellent/Good.

Is $1700$ a good score on SAT test if the mean score is $1150$ and the standard deviation is $250$ and SAT scores are distributed normally ?

Aqueous tin(II) ion, $\mathrm{Sn}^{2+}(\mathrm{aq})$, is a good reducing agent. Use data from Appendix $D$ to determine whether $\mathrm{Sn}^{2+}(\mathrm{aq})$ is a sufficiently good reducing agent to reduce
(b) $\mathrm{Fe}^{3+}(\mathrm{aq})$ to $\mathrm{Fe}^{2+}(\mathrm{aq}) ;$

Write good, well, bad, or badly in the space provided to complete each sentence correctly. Steve performs _____ under pressure.

Some parents let their infants go to sleep with a bottle of apple juice. Discuss, with reasons, whether this is a good or a bad idea.

Draw a line under the word in parentheses that correctly completes each sentence. Eat a (good, well) breakfast every morning.

Write good, well, bad, or badly in the space provided to complete each sentence correctly. Hold that thought! It's not half _____!

In firefighting, a good water stream can be modeled by y = -0.003x$^2$ + 0.62x + 3
where x is the water’s horizontal distance traveled (in feet) and y is its corresponding height (in feet). If a firefighter is aiming a good water stream at a building’s window 25 feet above the ground, at what two distances can the firefighter stand from the building?

Fill in the blank with the term that best complete the sentence. A good scientific ____ can be repeated by someone else, and the same results will be found.

There are five basic assumptions that must be fulfilled in order to perform a one-way ANOVA test. What are they? State the null hypothesis for a one-way ANOVA test if there are four groups.

New Automobile Owners Survey. J.D. Power and Associates surveys new automobile owners to learn about the quality of recently purchased vehicles. The following questions were asked in the J.D. Power Initial Quality Survey.

e. What is your overall rating of your new vehicle? (1- to 10-point scale with 1 Unacceptable and 10 Truly Exceptional)

$$\begin{array}{llcclr} \text { Brand } & \text { Model } & \text{ Price (\$) } & \text { Overall Score } & \text { Voice Quality } & \text { (hours) } \\ \text { AT\&T } & \text { CL84100 } & 60 & 73 & \text { Excellent } & 7 \\ \text { AT\&T } & \text { TL92271 } & 80 & 70 & \text { Very Good } & 7 \\ \text { Panasonic } & 4773 \text { B } & 100 & 78 & \text { Very Good } & 13 \\ \text { Panasonic } & \text { 6592T } & 70 & 72 & \text { Very Good } & 13 \\ \text { Uniden } & \text { D2997 } & 45 & 70 & \text { Very Good } & 10 \\ \text { Uniden } & \text { D1788 } & 80 & 73 & \text { Very Good } & 7 \\ \text { Vtech } & \text { DS6521 } & 60 & 72 & \text { Excellent } & 7 \\ \text { Vtech } & \text { CS6649 } & 50 & 72 & \text { Very Good } & 7 \end{array}$$

An ohmmeter is connected across an inductor and the pointer indicates an infinite value. The inductor is (a) good (b) open (c) shorted (d) resistive