subject

Mathematics, 20.07.2019 03:20 leshayk91

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 that 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 observed "t" value for this problem is

ansver

Answers: 2

Show answers

Another question on Mathematics

question

Mathematics, 21.06.2019 15:30

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Answers: 3

question

Mathematics, 21.06.2019 20:00

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212

Answers: 1

question

Mathematics, 21.06.2019 21:30

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Answers: 2

question

Mathematics, 21.06.2019 21:30

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth

Answers: 1

You know the right answer?

The local oil changing business is very busy on saturday mornings and is considering expanding. a na...

Questions

question

Chemistry, 20.11.2019 22:31

Astudent wants to dissolve the maximum amount of caf2 (ksp = 3.2 x 10^−11) to make 1 l of aqueous solution. (a) into which of the following sol...

question

Business, 20.11.2019 22:31

Aplant asset was purchased on january 1 for $40,000 with an estimated salvage value of $8,000 at the end of its useful life. the current year's deprec...

question

Business, 20.11.2019 22:31

Kwik taxi service uses the units-of-activity method in computing depreciation on its taxicabs. each cab is expected to be driven 145,000 miles. taxi 1...

question

Business, 20.11.2019 22:31

Ultra-energy company offers a cash rebate of $2 on each $9 package of protein powder sold during 2014. historically, 20% of customers mail in the reba...

question

Engineering, 20.11.2019 22:31

Aspherical pressure vessel of 1.2-m outer diameter is to be fabricated from a steel having an ultimate stress σu = 450 mpa. knowing that a factor of s...

question

Mathematics, 20.11.2019 22:31

1. exercise 18, section 5.4. compute 90, 91, 92, 93, 94 and 95. make a conjecture about the units digit of 9n where n is a positive integer. use stron...

question

Chemistry, 20.11.2019 22:31

Consider the following molecules with trigonal planar geometry. carbonate (co32−) and nitrate (no3−) both exhibit resonance, whereas phosgene (cocl2)...

question

Biology, 20.11.2019 22:31

Apply the method to an equilibirum reaction involved in homeostasis in biological organisms as altitude increases, atmospheric pressure decreases. for...

question

Mathematics, 20.11.2019 22:31

Points a and b are on opposite sides of a lake. a point c is 81.3 meters from a. the measure of angle bac is 78.33°, and the measure of angle acb is d...

question

Engineering, 20.11.2019 22:31

What is a typical yield strength value for an annealed or normalized 1018 (or 1020) steel alloy? what is a typical yield strength for a water-quenche...

question

Physics, 20.11.2019 22:31

Which of the following is not an advantage of simulation? straight-forward and flexible used to analyze large and complex real-world situations allow...

question

Mathematics, 20.11.2019 22:31

In a volleyball game a player on one team spikes the ball over the net when the ball is 10 ft above the court. the spike drives the ball with a downwa...

question

Biology, 20.11.2019 22:31

At one time, heinz made its own brand of soups. the company also produced those same soups to be sold as store brands. the heinz soups and the store-b...

question

Physics, 20.11.2019 22:31

Ablock slides down a frictionless inclined ramp. if the ramp angle is 17.0° and its length is 30.0 m, find the speed of the block as it reaches the bo...

question

History, 20.11.2019 22:31

After the boston massacre, the colonies organized the townshend acts to pay taxes to britain. committees of correspondence to respond to g...

question

Business, 20.11.2019 22:31

Stock a has a beta of 1.2 and a standard deviation of 25%. stock b has a beta of 1.4 and a standard deviation of 20%. portfolio ab was cre...

question

Business, 20.11.2019 22:31

Kinmi financial corporation is the parent company of kinmi bank. the company’s stock split was announced in the following wire: los angeles (business...

question

Business, 20.11.2019 22:31

During the past month, jennifer johnson had income of $2,000. during the month, her net worth declined by $200. if no other financial activities occur...

question

Business, 20.11.2019 22:31

Over time, people have come to rely more on market-produced goods and services and less on goods and services they produce for themselves. for example...

question

Mathematics, 20.11.2019 22:31

Quality control studies for speedy jet computer printers show the lifetime of the printer follows a normal distribution with mean = 4 years and standa...

More questions: Mathematics Another questions

Questions on the website: 13722363