Mathematics, 19.04.2021 05:30 PrincessKeliah8179
The average expenditure on Valentine's Day was expected to be 100.89 (USA Today, February 13, 2006). Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 52 male consumers was 132.5 , and the average expenditure in a sample survey of 38 female consumers was 63.34 . Based on past surveys, the standard deviation for male consumers is assumed to be 35, and the standard deviation for female consumers is assumed to be 14. The z value is 2.576.
Answers: 1
Mathematics, 21.06.2019 23:00
36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)
Answers: 1
Mathematics, 22.06.2019 00:00
Which of these angles are supplementary? a. 100o and 90o b. 78o and 102o c. 54o and 146o d. 12o and 78o
Answers: 1
Mathematics, 22.06.2019 01:30
How can you use synthetic substitution to tell whether a given binomial is a factor of a polynomial?
Answers: 1
The average expenditure on Valentine's Day was expected to be 100.89 (USA Today, February 13, 2006)....
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