Answer:
1/6
Step-by-step explanation:
/3= 1/6
The film company randomly picks 1000 men and 1000 women to complete the survey to determine the types of films they like. Which
2 answers:
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Answer:
Null hypothesis:
Alternative hypothesis:
And for this case we can use the confidence interval given by:
And after calculate the 90% confidence interval we got:
So then we see that all the values are negative so then we can conclude that the two means are different and on this case the mean for A seems to be lower than the mean for B at 10% of significance.
Step-by-step explanation:
Data given and notation
represent the mean for the sample A
represent the mean for the sample B
represent the sample standard deviation for the sample A
represent the sample standard deviation for the sample B
sample size selected A
sample size selected B
represent the significance level for the hypothesis test.
t 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 two means are equal., the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
And for this case we can use the confidence interval given by:
And after calculate the 90% confidence interval we got:
So then we see that all the values are negative so then we can conclude that the two means are different and on this case the mean for A seems to be lower than the mean for B at 10% of significance.