Answer:
As p-value = 0.0.68 > 0.05 the null hypothesis could not be rejected
Step-by-step explanation:
The computation of the p-value is shown below:
Given that
Average life =
= 88.5
Standard deviation =
= 9
Sample = n = 80
Based on the above information
Null and alternative hypothesis is

Now for the level of significance
= 0.05 and the critical value for a right talied test is 
Now the test statistic is

= 1.491
Now it is observed that
Z = 1.49≤z_ c = 1.64
So by this the null hypothesis could not be rejected
So,
P -value = 1 - P(z<1.491)
P-value = 0.068
As p-value = 0.0.68 > 0.05 the null hypothesis could not be rejected
Answer:
D
Step-by-step explanation:
Look at what the Y axis is labeled, cross reference it with your wrong answer and you get D by process of elimination and your chart thingy
Answer:
the range is 8
Step-by-step explanation:
the range is the highest value number minus the lowest value number. You can find that by the whiskers of the box plot which are 10 and 2. 10 minus 2 is 8.
Please mark as brainliest
Check the picture below.
notice, we have three pair of sides, let's add them all up to get the area
