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One manufacturer's high-quality product rate is 30%. recently, a sample with size 15 products is collected. among them, 3 are with high quality. Can we say the high-quality rate remains 30% using level of significance (alpha symbol)=0.05 ?
We can find that n(pi)=15 x 0.3 = 4.5 <= 5 (in reality, n(pi) is better be much larger than 5), so we do not take the assumption that it is normally distributed. we cannot use z-test.
An Alfa Romeo going at 70 mph requires 160 feet to stop. Assuming that the stopping distance is proportional to the square of velocity, find the stopping distances required by an Alfa Romeo going at 35 mph and at 140 mph (its top speed).
described the height of the ball above the ground, h, in feet, t seconds after the fall begins. How long will it take the ball to strike the ground?
Evaluate the line integral, where C is the given curve. (Round your answer to one decimal place.)
finding the value of x for which the power series converges.for what values of z does the power series1 - 3x 5x22 -
An airplane is traveling with an airspeed of 420 mph and a heading of 72 degrees. a wind of 32 mph is blowing at a heading of 130 degrees. find the ground speed and the course of the airplane.
A car is traveling at 94 km/h when the driver sees an accident 50 m ahead and slams on the brakes. What minimum constant deceleration is required to stop the car in time to avoid a pileup?
A person deposited $500 in a savings account that pays 5% annual interest that is compounded yearly. At the end of 10 years, how much money will be in the savings account?
a rectangular piece of cardboard whose area is 216 square centimeters is made into a cylindrical tube by joining together two sides of the rectangle. If the tube is to have a volume of 224 cubic centimeters what size of cardboard should you start ..
If I am correct, the answer guide says this one converges but my answer is going to infinity which is diverges. I need to see your steps to compare with mine please.
Standard normal probabilities. According to an article in The New York Times, 19.3% of New York City adults smoked in 2003. Suppose that a survey is conducted this year.
Transform the equation to standard form and find the center and radius of the circle:
A researcher expects a treatment to produce an increase in the population mean. The treatment is evaluated using a one tailed hypothesis test, and the test produces z = +1.85. Based on this result what is the correct statistical decision?
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