Amixture of pulverized fuel ash and portland cement to be used for grouting should have a compressive strength of more than1300 kn/m2. the mixture will not be used unless experimental evidence indicates conclusively that the strength specification has been met. suppose compressive strength for specimens of this mixture is normally distributed with ? = 68. let ? denote the true average compressive strength.
(b) let x denote the sample average compressive strength for n = 11 randomly selected specimens. consider the test procedure with test statistic x and rejection region x ? 1331.26. what is the probability distribution of the test statistic when h0 is true? (round your standard deviation to three decimal places.)
(c) what is the probability distribution of the test statistic when ? = 1350? (round your standard deviation to three decimal places.)using the test procedure of part (b), what is the probability that the mixture will be judged unsatisfactory when in fact? = 1350 (a type ii error)? (round your answer to four decimal places.)
(d) how would you change the test procedure of part (b) to obtain a test with significance level 0.05? (round your answer to two decimal places.) replace 1331.26 kn/m2 wit
what impact would this change have on the error probability of part (c)? (round your answer to four decimal places.)
the probability that the mixture will be judged unsatisfactory when in fact ? = 1350 will change to

the population of other specie of birds will decline or other specie of birds will find some alternate source of food to survive.

explanation:

according to the competitive exclusion principle, which is also known as gause's law, two specie living in the same niche and feeding on the same resource cannot co-exist stably.

as we have well studied the theory of natural selection which states that only those organisms survive which have better tendency to compete for food and adapt to the environmental conditions.

coming towards the question, what wi ll happen when one species outcompetes the other for the small fish , the other specie will not get enough food and will start to die or decline in population. eventually either other specie needs to find another alternative food source for itself or migrate at some other location where there is less competition otherwise it will just not exist anymore at that niche.

hope it !

if you was gonna solve for a, a is a   < -12

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4