Answer:
Check the explanation
Step-by-step explanation:
1) The null and alternative hypothesis is ,
Test statistic = t =
= 
= 
Test statistic = t = - 7.45
2) Solution :
The null and alternative hypothesis is
: p = 0.60
: p > 0.60
= x / n = 25 / 60 = 0.417
P0 = 0.60
1 - P0 = 1 - 0.60 = 0.40
Test statistic = z = 0.417
= ![\hat p - P0 / [\sqrtP0 * (1 - P0 ) / n]](https://tex.z-dn.net/?f=%5Chat%20p%20-%20P0%20%2F%20%5B%5CsqrtP0%20%2A%20%281%20-%20P0%20%29%20%2F%20n%5D)
= ![0.417 - 0.60/ [\sqrt(0.60 *(1 - 0.60) / 80 ]](https://tex.z-dn.net/?f=0.417%20-%200.60%2F%20%5B%5Csqrt%280.60%20%2A%281%20-%200.60%29%20%2F%2080%20%5D)
Test statistic = z = -3.34
He went upstream 3 hours and downstream two. 4x3=12 6x2=12
He went 24 miles.
Answer:
markup price = $25.31
retail price = $59.06
Step-by-step explanation:
Markup price is 75% OF 33.75
Retail price is original price (33.75) PLUS the markup price (to be found)
Firstly, converting a percentage to a decimal is simple. We simply divide by 100. So:
75% = 75/100 = 0.75
Now, to find markup, we multiply:
33.75 * 0.75 = $25.31
Now, the retail price is SUM of original and markup, that would be:
retail price = 33.75 + 25.31 = $59.06
Thus,
markup price = $25.31
retail price = $59.06
