Sam shares stickers with his class. Each sticker sheet has 5 stickers. If Sam's
2 answers:
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Answer:
The total amount of snow that fell is <u>7 inches</u>.
Step-by-step explanation:
Given:
The first four snowfalls of the year in Shawnee's hometown measured 1.6 inches, 2.2 inches, 1.8 inches, and 1.4 inches.
Now, to find the total amount of snow that fell.
Shawnee's hometown measured first four snowfalls of the year are:
1.6 inches, 2.2 inches, 1.8 inches, and 1.4 inches.
Now, to get the total amount of snowfall we add all the four snowfalls of the year:
Therefore, the total amount of snow that fell is 7 inches.
Answer:
The critical value for the 90% confidence interval is .
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of .
90% confidence level
So , z is the value of Z that has a p-value of
, so
.
The critical value for the 90% confidence interval is .