Question
In: Statistics and Probability
Each member of a random sample of 18 financial experts was asked to predict the rate...
Each member of a random sample of 18 financial experts was
asked to predict the rate of inflation for the coming year. Assume
that the predictions for the whole population of busfinancial
experts follow a normal distribution with standard deviation
2.2%.
a.) The probability is 0.10 that the sample standard deviation
is bigger than what number?
b.) The probability is 0.001 that the sample standard
deviation is less than what number?
c.) Find any pair of numbers such that the probability that
the sample standard deviation that lies between these numbers is
0.999.
please explain step by step and which table u have used and
how u get to the result.
Solutions
orchestra answered 2 years agoRelated Solutions
Each member of a random sample of 19 business economists was asked to predict the rate...
Each member of a random sample of 19 business economists was
asked to predict the rate of inflation for the coming year. Assume
that the predictions for the whole population of business
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1.5%.
a. The probability is 0.001 that the sample standard deviation
is bigger than what number?
b. The probability is 0.05 that the sample standard deviation is
less than what number?
c. Find any pair of numbers such that the...
Each member of a random sample of 16 business economists was asked to predict the rate...
Each member of a random sample of 16 business economists was
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that the predictions for the whole population of business
economists follow a normal distribution with standard deviation
2.1%
a. The probability is 0.10 that the sample standard deviation is
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b. The probability is 0.01 that the sample standard deviation is
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Hours/Gender
Male
Female
Total
Under 8
90
110
200
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85
75
160
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65
140
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250
250
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Masters Ph.d. Total
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Male 40 44 53
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Total 100 98 99
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