Answer:
The test statistic is -1.00
Step-by-step explanation:
Test statistic (Z) = (sample mean - population mean) ÷ sd/√n
sample mean = 38.8miles/gallon, population mean = 39miles/gallon, sd = 2.2miles/gallon, n = 120vans
Z = (38.8 - 39) ÷ 2.2/√120 = -0.2 ÷ 2.2/10.95 = -0.2 ÷ 0.20 = -1.00 (to 2 decimal places)
Answer:
fraction of the day was Priya lost
Step-by-step explanation:
As per the statement:
Priya spent 1/2 of the day hiking.
⇒She spent for hiking = 1/2 of the day.
It is also given that:
She was lost 5/6 of the time that she was hiking.
⇒
Substitute the given values we have;
of the day
therefore, fraction of the day was Priya lost
Can you tell me what the expressions, values and all that are
I ca't help with out the details.
