Answer:
The claim is false.
Step-by-step explanation:
Given the data :
13 24 21 37 15 25 18 22 40 32
The sample mean and standard deviation can ben calculated for the given sample.
Using calculator :
Sample mean, xbar = 24.7
Sample standard deviation, s = 9.04
Sample size, n = 10
The hypothesis :
H0 : μ = 17
H1 : μ ≠ 17
The test statistic :
(xbar - μ) ÷ (s/√(n))
(24.7 - 17) ÷ (9.04/√(10))
7.7 / 2.8586990
Test statistic = 2.694
We can obtain the Pvalue, at α = 0.05 ; df = n-1 = 9
Pvalue = 0.0246
Since Pvalue < α ; we reject the null ; Hence, there is significant evidence to conclude that an adult American does not spend average of 17 hours in leisure
Slope 1/7 ; easiest way to remember is rise over run
Answer: It is B & C
Step-by-step explanation:
I got it right
Answer:
4,060,000,000
Step-by-step explanation:
Take 4.06 remove the decimal then add a zero for the number beside ten. So 10^7 add 7 zeros behind 406.
divide the discount by the percentage off
so:
99.90/0.27 = 370
the original price was 370 dollars
