Mathematics, 18.05.2021 04:30 quesorules7101
5. A consumer group is trying to determine the mean amount that a family of four spends on food per week.
They perform a phone survey of 300 random families of four and find a sample mean of $241.50 with a
standard deviation of $46.72.
(a) Determine an estimate for the standard (b) What is the margin of error for the mean
deviation of the sample means, O. Show your amount spent on food per week?
calculation.
Answers: 3
Mathematics, 21.06.2019 18:30
Let f(x) = 3 β x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.
Answers: 1
Mathematics, 21.06.2019 18:50
What are the values of a, b, and c in the quadratic equation 0 = x2 β 3x - 2? a = 1, b = 3, c = 2 a=, b = -3,c=-2 a = 1, b = 3, c= 2 a = 1.0= -3, c = 2
Answers: 2
Mathematics, 21.06.2019 22:30
One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?
Answers: 1
Mathematics, 22.06.2019 00:50
Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte
Answers: 3
5. A consumer group is trying to determine the mean amount that a family of four spends on food per...
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