An iq test is designed so that the mean is 100 and the standard deviation is 21 for the population of normal adults. find the sample size necessary to estimate the mean iq score of statistics students such that it can be said with 99% confidence that the sample mean is within 6 iq points of the true mean. assume that sigma equals 21 and determine the required sample size using technology. then determine if this is a reasonable sample size for a real world calculation.

the required sample size is ?

would it be reasonable to sample this number of students?

yes. this number of iq test scores is a fairly small number.
yes. this number of iq test scores is a fairly large number.
no. this number of iq test scores is a fairly large number.
no. this number of iq test scores is a fairly small number.

answer: 370

step-by-step explanation:

remember use pemdas! there are no parentheses or exponents so lets move onto the first part of the equation: multiplication and division. first, lets break the first part of the equation up into something easier using the distributive property. 28 * 12= (20 *12) + (8*12) you know that 20*12 is 240 and 8*12 is 96. add them and you get 336. then, lets solve the last part of the equation (the last part of pemdas is addition and subtraction). 336 plus 34 is 370. hope this !

answer: the four apples you took away.

step-by-step explanation:

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

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m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0