It would be $66. $6 for each pair of pants.
Answer:
Reject H0 if x > cv
Step-by-step explanation:
The hypothesis :
H0 : μ ≤ 425
H1 : μ > 425
Standard deviation, s = √2500 = 50
Sample size, n = 100
xbar = 433.5
The test statistic, Z :
(xbar - μ) / s/√n
(433.5 - 425) / 50/10
Z = 8.5 / 5 = 1.7
The decision region ;
|Z| > Z0.01 ; Reject H0
From Z table ;critical value, Z0.01 = 2.33
1.7 < 2.33 ; We fail to reject then Null and conclude that thee is no significant evidence support the claim that population mean income has increased.
The amount of money Audrey brought to the mall : x
x - 5.35 - 21.39 = 3.26
x - 26.74 = 3.26
x = 30
so the answer is $30.
Answer:
The answer is 3 and 5
Step-by-step explanation:
3 and 5 is 15 (correct)
10 and 25 is 250 (not correct)
30 and 60 is 1800 (not correct)
60 and 75 is 450 (not correct)