1. A recent report stated \"Based on a sample of 160 truck drivers, there is evi

Question

1. A recent report stated "Based on a sample of 160 truck drivers, there is evidence to indicate that, on average, independent truck drivers ean more than company-hired truck statement describe descriptive or inferential statistics? this drivers." Does A) Descriptive statistics B) Inferential statistics 2. When we take data obtained from a sample and make generalizations or predictions about the entire population, we are utilizing inferential statistics. A) True B) False 3. A study attempted to estimate the proportion of Florida residents who were willing to spend more tax dollars on protecting the Florida coastline from environmental disasters. Forty-two hundred Florida residents were sarveyed.Which of the following is the population used in the study? A) Florida residents willing to spend more tax dollars protecting the coastline from environmental disasters B) the 4200 Florida residents who were surveyed C) all Florida residents who lived along the coastline D) all Florida residents 4. As part of an economics class project, students were asked to randomly select 500 New York Stock Exchange (NYSE) stocks from the Wall Street Joamal As part of the project,students were asked to summarize the current prices (also referred to as the closing price of the stock for a particular trading date) of the collected stocks using graphical and numerical techniques. Identify the sample of interest for this study A) the current price (or closing price) of a NYSE stock B) a single stock traded on the NYSE C) the entire set of stocks that are traded on the NYSE D) the 500 NYSE stocks that current prices were collected from 5. In an eye color study, 25 out of 50 people in the sample had brown eyes. In this situation, what does the number 50 represent? What class percentage corresponds to a class relative frequency of 37? A) 37% B) 63% C) 63% D) .37% 6. What number is missing from the table? Frequency 600 560 Relative Frequency 0.30 0.28 0.22 Years in College Freshman Junior Senior 020 400 A) 440 B) 480 C)220 D) 520

Explanation / Answer

a) from a sample we are infering about population. So it is inferential statistic

b) True

c)

Option a is correct

d)

Option a is correct

e)

Option A (37%)

d)

Missing number is X

600 -> 0.30

X -> 0.22

X = 600/0.30 *0.22 = 440

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