Z-test
attendance quiz: test of hypothesis (50 points)
q1. a herd of 1500 cattle was fed a special high-protein grain for a month. a random sample of 50 cattle was weighed and had gained an
average of 7.4 pounds. if the standard deviation of weight gain for the entire herd is 5.3 pounds, test the hypothesis that the average weight
gain per cow for the month was more than 7 pounds.
(a) state the null and alternative hypothesis
(b) calculate the test statistic. (round your answer to two decimal places
(c) calculate the p-value. round your answer to four decimal places.)
(d) based on a = 0.05, what is the correct conclusion for the hypothesis test?

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

the answer is $42.96

step-by-step explanation:

a. 32 degrees

step-by-step explanation:

here we have to use the rule.

m∠e = 1/2 (major arc - minor arc)

m∠e = 1/2 (212 - 148)

m∠e = 1/2 (64)

m∠e = 32 degrees

answer: a. 32 degrees

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