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IceJOKER [234]
2 years ago
14

The U.S. Department of Transportation provides estimated number of miles that residents of large metropolitan areas travel per d

ay in a car. In a random sample of 50 City A residents the mean was 22 miles with a standard deviation of 4 miles, and in a random sample of 50 City B residents the mean was 28 miles with a standard deviation of 8 miles. You want to know if the mean difference in number of miles travelled per day between City A and City B is different from zero in the population.
a. One sample t test
b. Paired samples t test
c. Independent samples t test
d. One-way analysis of variance (ANOVA)
Business
1 answer:
soldier1979 [14.2K]2 years ago
6 0

Answer:

c. Independent samples t test

Explanation:

An independent samples t test is used in the above case. Independent samples t test are employed when comparison is between two independently groups. Independent samples t test compares the mean of two independent groups as in above to determine if there is a statistically significant difference between them for the purpose of making a decision. For example in the above scenario if there is a difference in the means, we can conclude that City A and city B residents do not travel same distance in miles

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2 years ago
Phil Graves Cemetery had 63,000 shares of common stock issued and outstanding at January 1, 2021. During 2021, Graves took the f
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Question 4 Ivanhoe Company reports the following information (in millions) during a recent year: net sales, $10,794.0; net earni
Inga [223]

Answer:

ROA = 0.08 or 8%

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Working

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3 years ago
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