Mathematics, 19.11.2019 01:31 liluv6650
The following 5 questions are based on this information: an economist claims that average weekly food expenditure of households in city 1 is more than that of households in city 2. she surveys 35 households in city 1 and obtains an average weekly food expenditure of $164. a sample of 30 households in city 2 yields an average weekly expenditure of $159. historical data reveals that the population standard deviation for city 1 and city 2 are $12.50 and $9.25, respectively. city 1city 2x1(bar)=164x2 (bar) =159Ļ(1)=12.5Ļ(2) =9.25n(1)=35n2=30let Ī¼(1) be the mean weekly food expenditure for city 1 and Ī¼(2) be that for city 2.1. to test the economistās claim, the competing hypotheses should be formulated asselect one: a. h0: Ī¼1-Ī¼2> 0 versus ha: Ī¼1-Ī¼2ā¤0b. h0: Ī¼1-Ī¼2ā„0 versus ha: Ī¼1-Ī¼2< 0c. h0: Ī¼1-Ī¼2ā¤0 versus ha: Ī¼1-Ī¼2> 0
Answers: 2
Mathematics, 21.06.2019 15:40
Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathanās solution? jonathanās answer is reasonable because there are two decimal places in the factors and two in the product. jonathanās answer is unreasonable because there are three decimal places in the factors and two in the product. jonathanās answer is reasonable because is 16, and 16 is close to 15.77. jonathanās answer is unreasonable because is 8, and 8 is not very close to 15.77.
Answers: 1
Mathematics, 21.06.2019 18:10
Find the smallest number by which the given number should be divided to make a perfect cube(with steps or the answer will get reported) a.108 b.2187
Answers: 1
Mathematics, 21.06.2019 20:00
Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.
Answers: 3
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