Mathematics, 18.12.2019 03:31 kendricklamar29
The local oil changing business is very busy on saturday mornings and is considering expanding. a national study of similar businesses reported the mean number of customers waiting to have their oil changed on saturday morning is 3.6. suppose the local oil changing business owner, wants to perform a hypothesis test. the null hypothesis is the population mean is 3.6 and the alternative hypothesis is the population mean is not equal to 3.6. the owner takes a random sample of 16 saturday mornings during the past year and determines the sample mean is 4.2 and the sample standard deviation is 1.4. it can be assumed that the population is normally distributed. the level of significance is 0.05. the decision rule for this problem is to reject the null hypothesis if the observed "t" value is
Answers: 2
Mathematics, 22.06.2019 04:00
In may you used 400 kilowatt-hours of energy for electricity. a. calculate the total electrical energy use in joules. b. calculate your average power use in watts. c. assume that your power supplier generates electricity by burning oil. note that 1 liter of oil releases 12 million joules of energy. how much oil is needed to generate the electricity you use? give your answer in both liters and gallons. a. the total electrical energy use was nothing _ joules. (type an integer or a decimal.) b. the average power use is nothing _ watts. (round to the nearest whole number as needed.) c. to generate the electricity you used, nothing _ l is needed. (round to the nearest whole number as needed.) to generate the electricity you used, nothing _ gal is needed. (round to two decimal places as needed.)
Answers: 1
Mathematics, 22.06.2019 08:00
Bradley is preparing a presentation to show the ceo of his company. he wants to emphasize that the profits of their competitor have increased slowly over the past 16 months. the graphs below show the profit, y, of the competitor over the past 16 months. both graphs show the same information.
Answers: 2
Mathematics, 22.06.2019 08:30
Fifteen years from now ravi's age will be four times his present age what is ravi's present age
Answers: 1
The local oil changing business is very busy on saturday mornings and is considering expanding. a na...
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