Total weight of three items is 2.875 pounds
<em><u>Solution:</u></em>
Given that,
Maya is packing her backpack for hike
From given,
<em><u>How much weight do these three items add to her backpack?</u></em>
Add all these together
Thus total weight of three items is 2.875 pounds
Answer:
x = -5
Step-by-step explanation:
Hope this helps.
Answer and Step-by-step explanation:
This is a complete question
Trials in an experiment with a polygraph include 97 results that include 23 cases of wrong results and 74 cases of correct results. Use a 0.01 significance level to test the claim that such polygraph results are correct less than 80% of the time. Identify the nullhypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method. Use the normal distribution as an approximation of the binomial distribution.
The computation is shown below:
The null and alternative hypothesis is
= 0.7629
Now Test statistic = z
= -0.91
Now
P-value = 0.1804
So, it is Fail to reject the null hypothesis.
There is ample evidence to demonstrate that less than 80 percent of the time reports that these polygraph findings are accurate.