Answer:
The first one, the opposite of any negative number is the same number but positive...and vise versa.
Step-by-step explanation:
Answer:
40 girls 80 boys
Step-by-step explanation:
80/2=40
40+80=120
Answer:
R2->R3
Step-by-step explanation:
Answer:
Yah no way man your gonna fail
Step-by-step explanation:
Solution :
Let and represents the proportions of the seeds which germinate among the seeds planted in the soil containing and mushroom compost by weight respectively.
To test the null hypothesis against the alternate hypothesis .
Let denotes the respective sample proportions and the represents the sample size respectively.
The test statistic can be written as :
which under follows the standard normal distribution.
We reject at level of significance, if the P-value or if
Now, the value of the test statistics = -1.368928
The critical value =
P-value =
= 0.171335
Since the p-value > 0.05 and , so we fail to reject at level of significance.
Hence we conclude that the two population proportion are not significantly different.
Conclusion :
There is not sufficient evidence to conclude that the of the seeds that with the percent of the in the soil.