YES if you simplify 15:10 by 5 since they can both be divided by 5 the ratio becomes 3:2
Answer:
4x²+0x-7= 0
Step-by-step explanation:
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Answer:
Test statistic Z = 2.1097
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that size of the sample 'n' = 160
Given that mean of the Population(μ) = 5.3pounds/square inch
The Standard deviation of the population(σ) = 0.6
Mean of the sample(x⁻) = 5.4
Level of significance =0.1
<u><em>Step(ii):-</em></u>
Test statistic
Z = 2.1097
<u><em>Final answer</em></u>:-
Test statistic Z = 2.1097
Answer:
C = 72
Step-by-step explanation:
Answer:
(iii) The conclusion of a right tail hypothesis test (test of significance) for a population mean at the significance level should always match the conclusion of a two-sided confidence interval for estimating the same population mean at the confidence level 1- (iv) Keeping all other quantities fixed, increasing the significance level will increase the power of the test.
Explanation:
Improving your process decreases the standard deviation and, thus, increases power. Use a higher significance level (also called alpha or α). Using a higher significance level increases the probability that you reject the null hypothesis. ... (Rejecting a null hypothesis that is true is called type I error.)
Increase the power of a hypothesis test
1. Use a larger sample. ...
2. Improve your process. ...
3. Use a higher significance level (also called alpha or α). ...
4. Choose a larger value for Differences. ...
5. Use a directional hypothesis (also cathe called a one-tailed hypothesis).
