Suppose that a company claims that its air fresheners last 23 days, on average. You take many large samples, and find, each time
2 answers:
Answer:
Option D is the answer.
Explanation:
A company claims that its air fresheners last 23 days, on average. Many large samples are taken each time it is found that the mean number of days of the sample is outside the 95% confidence interval.
This implies:
So, below 21.85 is the probable mean number of days that the company's air fresheners last.
Therefore, 23 is not the mean number of days that the company's air fresheners last.
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Answer:
The car was travelling at a speed of 60 miles per hour.
Step-by-step explanation:
Given:
Distance traveled = 330 miles
Time Period =
we need to find the speed of the car .
Solution:
Time Period =
Now we can say that;
So Time period =
Now we know that;
Distance traveled is equal to Speed
multiplied by Time Period
.
framing in equation form we get;
Dividing both side by 5.5 we get;
Hence The car was travelling at a speed of 60 miles per hour.
Below is an equation that shows the equivalency between meters andGigameters:
The conversion factor should be used to convert from meters toGigameters should be:
The conversion factor should be used to convert from meters toGigameters should be: