Answer:
5/10 or 0.5
Step-by-step explanation:
step 1:find the least common denominator
4/5-3/10=
8/10-3/10=
step 2:subtract the numerators
8/10-3/10=5/10 or 0.5
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Answer:
Kindly check explanation
Step-by-step explanation:
H0 : μ = 15.7
H1 : μ < 15.7
This is a one sample t test :
Test statistic = (xbar - μ) ÷ (s/√(n))
n = sample size = 33
Using calculator :
The sample mean, xbar = 15.41
The sample standard deviation, s = 0.419
Test statistic = (15.41 - 15.70) ÷ (0.419/√(33))
Test statistic = - 3.976
Using the Pvalue calculator :
Degree of freedom, df = n - 1 ; 33 - 1 = 32
Pvalue(-3.976, 32) = 0.000187
Decison region :
Reject H0 if Pvalue < α
Since Pvalue < α ; we reject H0
There is significant evidence to conclude that the true average height of the seedlings treated with an extract from Vinca minor roots is less than 15.7 cm.
Answer:
0.007 × 10 = 0.07
Step-by-step explanation:
cant do step by step
Answer:
.000018484
Step-by-step explanation:
You divide them and that is what your calculator says
