Answer:
Since the calculated value of Z does not fall in the critical region we accept our null hypothesis that mean = 60 seconds
Step-by-step explanation:
State the null hypothesis
H0: u = 60against the claim
Ha u≠ 60 (this is a two tailed test)
Sample size n= 36
Sample mean=X`= 55
Population mean = u= 60
The significance level α = 0.05
Standard deviation= Sd = 22 seconds
Z= X`- u / Sd /√n
Z= 55- 60 / 22/√6
z= - 5/22/6
Z= -1.3635
The value of z from the table is Z∝/2= ±1.96
The critical region is less than - 1.96 and greater than 1.96.
Since the calculated value of Z does not fall in the critical region we accept our null hypothesis that mean = 60 seconds
Answer;
S
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Step-by-step explanation:
divide each term by y then simplify
The statistics are made to be misleading in such a way that the scale is altered on the graph. So, option C is correct.
<h3>What are statistics?</h3>
Statistics is the study of the discipline that concerns the organization, collection, analysis, and presentation of data.
A hasty generalization is fallacy in which a conclusion is reached before sufficient or unbiased evidence is gathered.
The statistics are made to be misleading in such a way that the scale is altered on the graph. So, option C is correct.
Learn more about statistics ;
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