Two examples analyzed whether telephone callers to an airline would stay on hold different lengths of time, on average, if they heard

(a) an advertisement about the airline,

(b) Muzak, or

(c) classical music. The sample means were 5.4, 2.8, and 10.4, with $n_1$ = $n_2$ = $n_3$ = 5. The ANOVA test had F = 74.6/11.6 = 6.4 and a P-value of 0.013.

A 95% confidence interval comparing the population mean times that callers are willing to remain on hold for classical music and Muzak is (2.9, 12.3). Interpret this interval.

For the House Selling Prices GI) OR data file on the book 's website, the table shows the result of conducting an ANOVA comparing mean house selling prices (in $1000) by Age Category (New = 0 to 24 years old, Medium = 25 to 50 years old, Old = 51 to 74 years old, Very Old = 75 + years old). It also shows a summary table of means and standard deviations of the selling prices, by age group.

Using information given in the tables, show how to construct a 95% confidence interval comparing the population means of new and medium-aged houses.

The Anorexia data file on the book's website shows weight change for anorexic teenage girls who were randomly assigned to one of three psychological treatments (cognitive or family therapy and a control treatment). Use software to analyze these data. (The change scores are in the last three columns of the data set. Alternatively, the website also contains a data set that shows the data in "long" format, with the treatment in one column and the change score in another column.)

For the one-way ANOVA comparing the three mean weight changes, report the test statistic and P-value. Explain how to interpret.

The Anorexia data file on the book's website shows weight change for anorexic teenage girls who were randomly assigned to one of three psychological treatments (cognitive or family therapy and a control treatment). Use software to analyze these data. (The change scores are in the last three columns of the data set. Alternatively, the website also contains a data set that shows the data in "long" format, with the treatment in one column and the change score in another column.)

Construct box plots for the three groups. Use these and sample summary means and standard deviations to describe the three samples.

Underline the subordinate clause in each sentence. Write $adj$. (adjective), $adv$. (adverb), or $n$ (noun) in the blank to tell what kind of clause it is.
_____The classical music that Mrs. Griffin likes the best is by Beethoven.

In the following sentences, underline each compound noun once and each collective noun twice.

Example. A $\underline{\underline{\text{ swarm }}}$ of bees hovered around the $\underline{\text{beehieve}}$.

The band included one song that sounded as if it had been recorded in an echo chamber.

Write C if the italicized word is used correctly. Write I if the word is used incorrectly.

Mozart is considered a paragon among composers. Many people think his music is the finest ever written.

Each year Kareem receives a $\$ 150$ gift card to download music and apps onto his phone. The card expires in one year.

a. Suppose Kareem gives himself a monthly allowance to use from his card. If he spent within $\$ 3$ of his monthly allowance for each of the first $11$ months, find the range Kareem has left to spend on music and apps in the last month of the year.

b. Describe your solution process.

c. What assumptions did you make?

Design a helical compression spring using music wire that will exert a force of $14.0\ \mathrm{lb}$ when its length is $0.68\ \mathrm{in}$. The free length is to be $1.75\ \mathrm{in}$. Use average service.

The verb tenses in the following sentence are not used consistently and logically. On the line provided, rewrite the sentence to correct errors in the use of tense. Example [1] In the twentieth century, musical experimentation becomes more common, and new sounds and forms began to emerge. $\underline{\text{\color{#c34632}In the twentieth century, musical experimentation became more common, and new sounds and forms began to emerge.}}$

African American contributions to contemporary music had included rhythm and blues and soul music.

The given table shows $f(t)$, total sales of music compact discs (CDs), in millions, and $g(t)$, total sales of music cassettes, in millions, as a function of year $t$.

Use $f^{\prime}(2002)$ to estimate $f(2003)$ and $f(2010)$. Interpret your answers in terms of sales of CDs.

Identify which one of the following statements describes a mercury barometer. a. It is less accurate than an aneroid barometer. b. It has a chamber that contains a lot of water. c. It indicates barometric pressure by the height of the mercury in the tube. d. It is more commonly used than an aneroid barometer.

For the following sentence, choose the correct form of the object of the preposition in parentheses. Example 1. The Pomeranian belongs to (he, $\underline{\text{him}}$).

Please pick up the sheet music and hand it to (us, we).

A 200 g oscillator in a vacuum chamber has a frequency of 2.0 Hz. When air is admitted, the oscillation decreases to 60% of its initial amplitude in 50 s. How many oscillations will have been completed when the amplitude is 30% of its initial value?