Answer:
1.) mean
2.) H0 : μ = 64
3.) 0.0028
4) Yes
Step-by-step explanation:
Null hypothesis ; H0 : μ = 64
Alternative hypothesis ; H1 : μ < 64
From the data Given :
70; 45; 55; 60; 65; 55; 55; 60; 50; 55
Using calculator :
Xbar = 57
Sample size, n = 10
Standard deviation, s = 7.14
Test statistic :
(xbar - μ) ÷ s/sqrt(n)
(57 - 64) ÷ 8 / sqrt(10)
Test statistic = - 2.77
Pvalue = (Z < - 2.77) = 0.0028 ( Z probability calculator)
α = 10% = 0.1
Reject H0 ; if P < α
Here,
P < α ; Hence, we reject the null
You can download the app photo math and that will help you
The answer is 2/3.
hope this helps!
Answer:
since each item costs rs1263 we say
rs1263×22
27786
this means he spent rs27786
Her we now say rs47500-rs27786
=rs19714
This is to say that he has rs19714 left with him.
Answer:
x=1
Step-by-step explanation:
Just look at the x axis and see where the coordinate lands on and it's 1
