protected from excessive wear. An infomercial claims that a woman drove 3 hours without​ oil, thanks to the engine treatment. A magazine tested engines in which they added the treatment to the motor​ oil, ran the​ engines, drained the​ oil, and then determined the time until the engines seized. Complete parts ​(a) and ​(b) below. ​(a) Determine the null and alternative hypotheses that the magazine will test.   H0​: ▼   muμ pp sigmaσ ▼   not equals≠ less than< equals= greater than> 3 H1​: ▼   sigmaσ pp muμ ▼   equals= greater than> less than< not equals≠

Q: With α=.05,test the claim that people see UFO's at a lower rate than they see ghosts if 122 of 981…

A: For UFO : 122 of 981 people saw a UFO  sample size, n1 = 981 Sample proportion, p1 = 122/981 =…

Q: Evaluate ∫ e−9t dt.

A:

Q: 9) Suppose a culture of bacteria starts with 60 bacteria and grows to 500 bacteria in 6 hours. Find…

A: ,

Q: A certain forest covers an area of 2100  km2 . Suppose that each year this area decreases by 9% .…

A: ANSWER:

Q: A museum contains a large pendulum. Due to air resistance and friction, each swing of the pendulum…

A:

Q: A certain county taxes the first $ 200,000 of an individual's income at a rate of 12%, while all…

A:

Q: An automobile battery manufacturer offers a 39/50 warranty on its batteries. The first number in the…

A: free of cost replacement for x &lt; 39 prorated credit 39&lt;x&lt;50 mean = 44 std.dev = 3.6…

Q: (d) The value of the biomass at the end of the time interval [0,5] is. (Type an expression using B,…

A: Consider the change in biomass B(t):

Q: The number of reported crimes in a city was about 22,700 in a recent year. Due to the creation of a…

A: As given in question, the crime decreases 8%, it retains 92% of the previous year at the end of…

Q: "le of 212 twenty-year-old men is selected from a popula n pounds and Height is measured in inches.…

A: from the given data: Wight (-105 3740) 41704 xHaught -085 SER-10:9120 (2 2790) (0.3206)

Q: (b) Throughout last month, the King family's pool was only half full of water. Three weeks ago, Mrs.…

A: Solve the following

Q: Progress made easy for RT. ASHNA AHMAD, # 3 of 45 English Spanish 6 Justin is 2 years older O 5 than…

A: The objective is to find Justin's age.

Q: C. The rocket is not to be re-used again if the total number of maintenance visits exceed 50, then…

A:

Q: The population in a small town is increasing at the rate of 6% per year. If the present population…

A: Given,          The population in a small town is increasing at the rate of 6% per year. The present…

Q: A small metal bar, whose initial temperature was 15° C, is dropped into a large container of bowling…

A: Given Initial temperature=15°C temperature increase to=22°C in 1 second.

Q: In a sample of 177 adults how long it takes to fall asleep is expected to be related to how much…

A: Given information: MCake=2.1MSleep=1.15S.D=1.53S.D=4.7r=0.38

Q: Suppose for a particular commodity, e=.75 and that currently 40,000 units are selling for $8 each.…

A:

Q: EX#3: A baker added enough chips to the dough so that only 1% of the cookies will contain no chips.…

A:

Q: 1) March 2020, a woman was said to be exactly 3 months pregnant. How many days will it take to make…

A: Since you have posted the multiple questions. I am answering the first one. Please post the question…

Q: certain forest covers an area of 2300 km2 . Suppose that each year this area decreases by  3.75% .…

A: Topic :- algebra

Q: 5. For this problem, be sure to show your calculations in addition to your final answer. Use the…

A: For independent events X and Y, the conditional probability of X when Y is given is the same as the…

Q: Lee earned $240 in the first week cutting grass, $350 in the second week, and $460 in the third…

A: Given that  Lee earned $240 in the first week cutting grass, $350 in the second week, and $460 in…

Q: A Company purchased equipment for RO 50,000 with an estimated useful life of 20 years. At the end of…

A: Consider the provided question,

Q: if a certain environment bill is passed by congress, the united states would have to reduce…

A: topic. - percentage

Q: ompany is considering an investment that requires an immediate investment of $475,000 and an…

A:

Q: a) the tube will last beyond 20 hours b) the tube wil bum out before 15 hours c) the tube wil last…

A:

Q: Chris completes one lap of a go-cart track every 40 s. D’Arcy completes one lap of the same track…

A: The LCM of time taken by both of them will be the time when they will cross the starting line…

Q: $⁢23,585 is invested, part at 14% and the rest at 8%. If the interest earned from the amount…

A: I am going to solve the given problem by using some simple algebra to get the required result of the…

Q: In 1980 the population of aligators in a particular region was esi mated to be 1600. In 2008 the…

A:

Q: i myopenmath.com/assess2/7Cid You go to the doctor and he gives you 13 milligrams of radioactive…

A: We have to find how will spend minutes at the doctor's office.

Q: The purchased cost of a shell-and-tube heat exchanger (floating-head and carbon-steel tubes) with A…

A:

Q: Due to your outstanding HELL80 skills, you have been hired by the Umbrella Corporation to calculate…

A:

Q: Suppose that the number of employees in a new company is expected to grow, with the number of…

A: N=4000(0.04)0.4t

Q: A. At what rate are the ballots being deposited into the box at noon (t = 5)? Show your computations…

A:

Q: 2. The University of Georgia opened its doors to the first class in 1801. At that time Josiah…

A: Let the population of the squirrels after t years from 1801 be p(t)=aekt where k is the growth rate…

Q: 1.) The 2005 was 3.7 illion. uhat is the Q-year gowertn 1*: o2 Ireland is 6.2 million. The…

A: Population=3.7 million to 6.2 million

Q: To ensure that the balls bounce consistently, tennis balls in Wimbledon are stored at exactly 68°F.…

A:

Q: A state patrol officer saw a car start from rest at a highway on-ramp. She radioed ahead to another…

A: known fact:

Q: A small metal bar, whose initial temperature was 15° C, is dropped into a large container of bowling…

A: We know that, the standard form of Newton's law of cooling: T-T∞=T0-T∞e-kt Where; T∞ is the ambient…

Q: The Grand Canyon and the Colorado River are beautiful, rugged, and sometimes dangerous. Assume there…

A: Given that upper canyon and lower canyon values as follows, Upper canyon :  2  3  3  1  3  4  8  11…

Q: a. experiences neither depression nor weight gain. b. experiences depression given that the patient…

A: We have given that  P( depression) = 0.38 P( weight gain ) = 0.28 P( depression and weight gain ) =…

Q: A federal agency wants to investigate the value workers place on being able to work in quiet…

A: according to question  average annual wage in quiet factories be $55,550 average annual wage in…

Q: Match the following: 2 Flothemissing steps 2x399,997.044 x2 800.000.000 10x 10 10 10+10* 10 10x 10…

A: Here we solve given scientific calculations.

Q: the fuel efficiency for a certain mid size car is given by E(v)=-0.018v^2 + 1.476v+ 3.4 where E(v)…

A: The fuel efficiency for a certain mid size car is given by  Ev=-0.018v2+1.476v+3.4 The given…

Q: A culture of bacteria has an initial population of 210o bacteria and doubles every 4 hours. Using…

A: given that : P0=2100d=4

Q: A report about an isolated community claims there are more newborn females than males, although we…

A: State the hypotheses. That is, the frequencies of newborn females and males are equal. That is,…

Q: A toll tunnel has decided to experiment with the use of a debit card for the collection of tolls.…

A: (a) Given that λ=250,  It will take 12 seconds to verify one card, So,  u=1 card / 12 sec=300 cards/…

Q: please answer in 30 mins. and only if you are sure. ACME company is considering on bidding 3,000,…

A: Question: please answer in 30 mins. and only if you are sure. ACME company is considering on bidding…

Q: suppose for a particular commodity, e=.25 and that currently 90,000 units are selling for $6 each.…

A:

Q: A bank with a branch located in a commercial district of a city has the business objective of…

A: the mean and stansard deviation of a data is given byX¯=∑iXiN, where Xi is the observation in the…