Sketch the standard Normal curve for the test statistic and mark off areas under the curve to show why a value of z z that is significant at the 1 % 1% level in a one‑sided test is always significant at the 5 % 5% level. If z z is significant at the 5 % 5% level, what can you say about its significance at the 1 % 1% level?

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

30.5*10=350$

you have to multiply the number without the decimal point then add it later but if its tenn u must move the place value of the decimal point 1 to the right.

i need more details

step-by-step explanation: