Answer: 4.2
Step-by-step explanation: 20 x 21
100
= 4.2
Answer:
Friday
Step-by-step explanation:
103 - 83 is 20 and 20 divided by 5 is 4 so just count 4 days after monday
Answer:
B.
I mean I'm pretty sure that most people agree that the answer is B.
The solution to the Questions are
- The alternate hypothesis demonstrates that there are two possible outcomes for the test.
- Decision rule: If z > 2.05 or z<-2.05, reject H0
- The two-tailed nature of the test is shown by the alternative hypothesis.
- The result of the test yields the following P-value: 0.0096
<h3>What is the alternate hypothesis?</h3>
(a)
The alternate hypothesis demonstrates that there are two possible outcomes for the test.
(b)
Here we have
![n_{1}=40,\\\\ \bar{x}_{1}=102,\sigma_{1}=5,n_{2}=50,\bar{x}_{2}=99,\sigma_{2}=6](https://tex.z-dn.net/?f=n_%7B1%7D%3D40%2C%5C%5C%5C%5C%20%5Cbar%7Bx%7D_%7B1%7D%3D102%2C%5Csigma_%7B1%7D%3D5%2Cn_%7B2%7D%3D50%2C%5Cbar%7Bx%7D_%7B2%7D%3D99%2C%5Csigma_%7B2%7D%3D6)
(b)
Here the test is two-tailed. So for
, the critical values of the z-test are -2.05 and 2.05.
Decision rule: If z > 2.05 or z<-2.05, reject H0
(c)
Test statistics will be
![z=\frac{(\bar{x}_{1}-\bar{x}_{2})-(\mu_{1}-\mu_{2})}{\sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}} \\\\\\z=\frac{(102-99)-(0)}{\sqrt{\frac{5^{2}}{40}+\frac{6^{2}}{50}}}](https://tex.z-dn.net/?f=z%3D%5Cfrac%7B%28%5Cbar%7Bx%7D_%7B1%7D-%5Cbar%7Bx%7D_%7B2%7D%29-%28%5Cmu_%7B1%7D-%5Cmu_%7B2%7D%29%7D%7B%5Csqrt%7B%5Cfrac%7B%5Csigma%5E%7B2%7D_%7B1%7D%7D%7Bn_%7B1%7D%7D%2B%5Cfrac%7B%5Csigma%5E%7B2%7D_%7B2%7D%7D%7Bn_%7B2%7D%7D%7D%7D%20%20%5C%5C%5C%5C%5C%5Cz%3D%5Cfrac%7B%28102-99%29-%280%29%7D%7B%5Csqrt%7B%5Cfrac%7B5%5E%7B2%7D%7D%7B40%7D%2B%5Cfrac%7B6%5E%7B2%7D%7D%7B50%7D%7D%7D)
z=2.59
(d)
The two-tailed nature of the test is shown by the alternative hypothesis.
(e)
The result of the test yields the following P-value: 0.0096
Read more about P-value
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