Question
In: Statistics and Probability
A bakery does not keep track of the number of chocolate chips they put in their cookies.
A bakery does not keep track of the number of chocolate chips they put in their cookies. The number of chocolate chips is normally distributed with mean µ and variance σ2 = 25, where µ is unknown. A customer buys a dozen of these cookies, and obtains the simple random sample 31, 23, 42, 44, 28, 34, 19, 29, 30, 25, 28, 27
(a) Compute a 95% confidence interval for µ.
(b) Compute 90% and 99% confidence intervals for µ.
(c) Suppose the customer wants a 95% confidence interval that has a width of at most 2. How many cookies would he need to buy to achieve this?
Solutions
orchestra answered 2 years agoRelated Solutions
Bob's Chocolate Chips and More, a bakery specializing in gourmet pizza and chocolate chip cookies, started...
Bob's Chocolate Chips and More, a bakery specializing in gourmet
pizza and chocolate chip cookies, started business October 1, 2017.
The following transactions occurred during the month of
October.
Common stock of $90,000 was sold at par to start the
business.
Equipment consisting of mixers and ovens was acquired October 1
for $30,000 cash. The equipment is expected to last five years,
after which it is expected to be sold for $5,000. Management uses
the straight-line method to calculate depreciation...
Bob's Chocolate Chips and More, a bakery specializing in gourmet pizza and chocolate chip cookies, started...
Bob's Chocolate Chips and More, a bakery specializing in gourmet
pizza and chocolate chip cookies, started business October 1, 2017.
The following transactions occurred during the month of
October.
a.Common stock of $90,000 was sold at par to start the
business.
b. Equipment consisting of mixers and ovens was acquired October
1 for $30,000 cash. The equipment is expected to last five years,
after which it is expected to be sold for $5,000. Management uses
the straight-line method to calculate...
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is approximately normally distributed with mean 1261 and a standard
deviation of 118. (a) Determine the 29th percentile for the number
of chocolate chips in a bag. (b) Determine the number of chocolate
chips in a bag that make up the middle 98% of bags. (c) What is
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is approximately normally distributed with mean
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and a standard deviation of
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(b) Determine the number of chocolate chips in
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