Mathematics, 11.11.2020 18:10 Parmenter
An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in California. Suppose that the mean income is found to be $22.4 for a random sample of 2128 people. Assume the population standard deviation is known to be $9.3. Construct the 98% confidence interval for the mean per capita income in thousands of dollars. Round your answers to one decimal place.
Answers: 3
Mathematics, 20.06.2019 18:04
Solve the inequality. write the inequality in interval notation. 9(t-2)> 3(t-7)
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Mathematics, 21.06.2019 12:30
How do you multiply a mixed fraction by a regular fraction
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Mathematics, 21.06.2019 13:30
12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain
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Mathematics, 21.06.2019 17:00
Ataxi company charges $2.25 for the first mile and then $0.20 per mile for each additional mile, or f = $2.25 + $0.20(m - 1) where f is the fare and m is the number of miles. if juan's taxi fare was $6.05, how many miles did he travel in the taxi? if juan's taxi fare was 7.65, how many miles did he travel in taxi
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An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city...
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