Answer:
3
Step-by-step explanation:
Intercept theorem
DE // CB ⇒
⇒
⇒ ? = 3
Last Saturday there were 1486 people at the Cineplex there were about the same number of people in each of six theaters between
2 answers:
Answer: The required two number will be 247 and 248.
Step-by-step explanation:
Since we have given that
Number of people at the Cineplex on last Saturday=1486
Number of theaters are there=6
Number of people in each theatres is given by
So it must lie between 247 and 248.
As the number of people in each theatre is 247.66 so , it may be between 247 and 248.
So, the required two number will be 247 and 248.
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Answer:
When we compare the significance level we see that
so we can reject the null hypothesis at 10% of significance. So the the true mean is difference from 21 at this significance level.
Step-by-step explanation:
Data given and notation
represent the sample mean
represent the population standard deviation
sample size
represent the value that we want to test
represent the significance level for the hypothesis test.
z would represent the statistic (variable of interest)
represent the p value for the test (variable of interest)
State the null and alternative hypotheses.
We need to conduct a hypothesis in order to check if the average age of the evening students is significantly different from 21, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
Calculate the statistic
We can replace in formula (1) the info given like this:
P-value
Since is a two sided test the p value would be:
Conclusion
When we compare the significance level we see that
so we can reject the null hypothesis at 10% of significance. So the the true mean is difference from 21 at this significance level.