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A random telephone survey of adults 1,159 (aged 18 and older) was conducted by Opinion Research Corporation on behalf of CompleteTax, an online tax preparation and e-filing service. The survey results showed that 695 of those surveyed planned to file their taxes electronically.

a. Develop a descriptive statistic that can be used to estimate the percentage of all taxpayers who file electronically.

% (to nearest whole number)

b. The survey reported that the most frequently used method for preparing the tax return was to hire an accountant or professional tax preparer. If of the people surveyed had their tax return prepared this way, how many people used an accountant or professional tax preparer?

(to nearest whole number)

Q2

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

a.What is the average price for the phones (to 2 decimals)?

b.What is the average talk time for the phones (to 3 decimals)? hours

c.What percentage of the phones have a voice quality of excellent (to the nearest whole number)?

q3

Consumer Reportsevaluates products for consumers. The fileCompactSUV(click on the datafile logo to reference the data) contains the data shown in the table below for15compact sports utility vehicles (SUVs) from the2018model line (Consumer Reportswebsite):

Make manufacturer

Model name of the model

Overall score awarded based on a variety of measures, including those in this data set

Recommended Consumer Reportsrecommends the vehicle or not

Owner satisfaction satisfaction on a five-point scale based on the percentage of owners who would purchase the vehicle again (, ,0, +, ++)

Overall miles per gallon miles per gallon achieved in a150-mile test trip

Acceleration (0-60 sec) time in seconds it takes vehicle to reach60miles per hour from a standstill with the engine idling

Consumer ReportsData Set for 15 Compact Sports Utility Vehicles
		Overall		Owner	Overall Miles	Acceleration
Make	Model	Score	Recommended	Satisfaction	per Gallon	(0-60) Sec
Subaru	Forester	84	Yes	+	26	8.7
Honda	CRV	83	Yes	++	27	8.6
Toyota	Rav4	81	Yes	++	24	9.3
Nissan	Rogue	73	Yes	+	24	9.5
Mazda	CX-5	71	Yes	++	24	8.6
Kia	Sportage	71	Yes	+	23	9.6
Ford	Escape	69	Yes	0	23	10.1
Volkswagen	Tiguan Limited	67	No	0	21	8.5
Volkswagen	Tiguan	65	No	+	25	10.3
Mitsubishi	Outlander	63	No	0	24	10.0
Chevrolet	Equinox	63	No	0	31	10.1
Hyundai	Tuscon	57	No	0	26	8.4
GMC	Terrain	57	No	0	22	7.2
Jeep	Cherokee	55	No		22	10.9
Jeep	Compass	50	No	0	24	9.8

a.How many variables are in the data set?