there are 165 different plants in the school garden.of these ,132 will flower in spring.what percent of the plants will flower i
1 answer:
You might be interested in
Answer:
Now we can calculate the p value with this probability:
If we use a significance level os 0.05 we see that the p value is lower than the significance level so then we can conclude that the true proportion of students with jobs is higher than 0.35 for this case. If we decrease the significance level to 1% the result changes otherwise not.
Step-by-step explanation:
Information given
n=78 represent the random sample taken
X=36 represent the students with jobs
estimated proportion of students with jobs
is the value that we want to test
z would represent the statistic
represent the p value
Hypothesis to test
We want to test if the proportion of students with jobs is higher than 0.35, the system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
Replacing the info we got:
Now we can calculate the p value with this probability:
If we use a significance level os 0.05 we see that the p value is lower than the significance level so then we can conclude that the true proportion of students with jobs is higher than 0.35 for this case. If we decrease the significance level to 1% the result changes otherwise not.
Answer:
Step-by-step explanation:
Given
Required
Determine the number of bags sold
First, we need to determine the number of bags for 27 pears;
Since they are packed in 3s
Hence:
9 bags were used for 27 pears;
After 5 bags were sold, we have:
Recall that the pears are packed in 3s
So: