If npgreater than or equals≥5 and nqgreater than or equals≥5, estimate Upper P (at least 6 )P(at least 6) with nequals=1313 and pequals=0.60.6 by using the normal distribution as an approximation to the binomial distribution; if npless than<5 or nqless than<5, then state that the normal approximation is not suitable.

15 point ! ~ see if you know the answer to both you!

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true