Complete Question
The weights of soy patties sold by a diner are normally distributed. A random sample of 15 patties yields a mean weight of 3.8 ounces with a sample standard deviation of 0.5 ounces. At the 0.05 level of significance,perform a hypothesis test to see if the true mean weight is less than 4 ounce.
Answer:
Yes the true mean weight is less than 4 ounce
Explanation:
From the question we are told that
The random sample is 
The mean weight is 
The standard deviation is 
The level of significance is 
So
The null hypothesis is 
The alternative hypothesis is 
Generally the critical value which a bench mark to ascertain whether the null hypothesis is true or false is mathematically represented as
This value is obtained from the critical value table
Generally the test statistics is mathematically represented as
=> 
So since ST is less than 
then the null hypothesis would be rejected and the alternative hypothesis would be accepted so
Thus the true mean weight is less than 4
Answer:
The velocity could be in any direction, but the acceleration is in the direction of the resultant force.
Explanation:
The ball (assuming that we can treat it as a point mass) must obey Newton's 2nd Law, that states that the acceleration produced by a force, is proportional to the applied force, being the mass the proportionality constant.
As the force is the vector, and the mass an scalar, the acceleration vector must be in the same direction as the force vector.
Velocity, instead, can be in any direction: When an object is speeding up is in the same direction as the acceleration, while if it is slowing down, it has just the opposite.
<span>D. measuring radioactive decay of element isotopes </span>
C. Magnesium
Because it has the lowest number. :)
Answer:
C
Explanation:
The strong force holds together quarks, the fundamental particles that make up the protons and neutrons of the atomic nucleus, and further holds together protons and neutrons to form atomic nuclei. As such it is responsible for the underlying stability of matter.
