subject
Mathematics, 06.08.2019 22:10 erikloza12pdidtx

Raftelis financial consulting reported that the mean quarterly water bill in the united states by public utilities was $47.50. an economist pointed out that privatization does not equal competition and monopoly powers provided to public utilities are now being transferred to private companies. the concern is that consumers end up paying higher than average rates for water provided by private companies. the water system for atlanta, georgia, is provided by a private company. a sample of 64 atlanta consumers showed a mean quarterly water bill of $51 with a sample standard deviation of $12. at α = .05 does the atlanta sample support the conclusion that above average rates exist for this private water system? what is the correct hypothesis test?

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 19:00
What are the solutions of the equation? 6x^2 + 11x + 4 = 0 a. 4/3, 1/2 b. -4/3, -1/2 c. 4/3, -1/2 d. -4/3, 1/2
Answers: 2
question
Mathematics, 21.06.2019 23:00
At river bank, checking account customers earn 0.75% interest a month on their account balances, pay no service fees for writing checks, and pay a monthly $2.00 financial charge. calculate the income earned in one month on the checking account for a customer with an account balance of $1,000. a. $4.25 b. $5.50 c. $6.75 d. $7.25 checking account earnings at baker’s bank are expressed by the equation: i = -0.09x + 10.2. while the earnings at elite bank are modeled by: i = -0.02x + 7.5. in both cases, x is the number of checks written. at what number of checks will elite bank start generating more checking account income than baker's bank? a. 12 b. 25 c. 39 d. 42 emilio’s checking account had a balance of 728.32 at the beginning of the week. he wrote checks for the following amounts throughout the week: $99.48, $33.50, $18.23, and $72.05. he also deposited his paycheck in the amount of $1,109.90. what is his account balance at the end of the week? a. $1,192.35 b. $1,222.86 c. $1,540.52 d. $1,614.96
Answers: 1
question
Mathematics, 21.06.2019 23:30
I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i
Answers: 1
question
Mathematics, 22.06.2019 00:20
When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?
Answers: 1
You know the right answer?
Raftelis financial consulting reported that the mean quarterly water bill in the united states by pu...
Questions
question
Mathematics, 24.03.2020 15:58
question
English, 24.03.2020 15:58
question
Mathematics, 24.03.2020 16:00
question
Mathematics, 24.03.2020 16:01
Questions on the website: 13722359