Question

identify the test statistic
mean wt of one coin=2.5
sample is 35 coins
mean wt of all coins=2.49488
std dev=.01278
.05 significance level

Answer 1

i think this is a modified z ... maybe

Answer 2

the zscore is usually defined as the test statisitic tho

Answer 3

\[z=\frac{x-\bar x}{\sigma}\sqrt{n}\]if i remember it right

Answer 4

apart from that im drawing a blank as to what it might be asking for

Answer 5

x=2.5

mean = 2.49488

n = 35

sd = .01278

not sure what the significance level is spose to do for us tho