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

Question

amistre64 · Answer

i think this is a modified z ... maybe

amistre64 · Answer

the zscore is usually defined as the test statisitic tho

amistre64 · Answer

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

amistre64 · Answer

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

amistre64 · Answer

x=2.5

mean = 2.49488

n = 35

sd = .01278

not sure what the significance level is spose to do for us tho