Question
In: Statistics and Probability
The Statistical Abstract of the United States published by the U.S. Census Bureau reports that the...
The Statistical Abstract of the United States published by the U.S. Census Bureau reports that the average annual consumption of fresh fruit per person is 99.9 pounds. The standard deviation of fresh fruit consumption is about 30 pounds. Suppose a researcher took a random sample of 38 people and had them keep a record of the fresh fruit they ate for one year.
(Round all z values to 2 decimal places. Round your answers to 4 decimal places.)
a. What is the probability that the sample average would be less than 90 pounds?
p =
b. What is the probability that the sample average would be between 98 and 105 pounds?
p =
c. What is the probability that the sample average would be less than 112 pounds?
p =
Solutions
orchestra answered 1 year agoRelated Solutions
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3
9
11
8
4
7
8
8
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8.5
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0.8
(10pt)...
The U.S. Census Bureau computes quarterly vacancy and homeownership rates by state and metropolitan statistical areas....
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homeownership rates by state and metropolitan statistical areas.
The following data are the rental vacancy rates in percentage (%)
grouped by region for the last quarter of 2018 using a sample of 4
statistical metropolitan areas.
Vacancy rates (%)
Region
Northeast
South
West
1
7
5
8
2
6
9
10
3
9
11
8
4
7
8
8
sample mean
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8.3
8.5
sample variance
1.2
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0.8
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