Question
In: Statistics and Probability
2. A coffee shop knows that the temperature of their coffees has a distribution that is...
2. A coffee shop knows that the temperature of their coffees has a distribution that is skewed to the left with mean µ degrees and standard deviation σ = 8 degrees. A random sample of 36 coffees yielded a sample mean temperature ¯ x = 187 degrees.
(a) Test H0 : µ = 190 versus Ha : µ 6= 190 at the α = 0.01 significance level using a 3-step test.
(b) Based upon your answer in part (a), does µ significantly differ from 190? Why?
(c) Approximate the p−value for the test in part (a).
(d) Based upon your answer in part (c), does µ significantly differ from 190? Why?
Solutions
orchestra answered 2 years agoRelated Solutions
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A hospital manager knows the surgical glove has a Normal distribution with a mean of five...
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Question 1 The coffee shop A coffee shop knows from past records that its weekly takings...
Question 1 The coffee shop A coffee shop knows from past records
that its weekly takings (sales) are normally distributed with a
mean of $10,500 and a standard deviation of $478. Answer the
following questions:
a. Find the probability that in a given week the coffee shop
would have takings of more than $10,700
b. Find the probability that in a given week the takings are
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Supposedly the distribution of the human's body temperature in the population has a mean of 37ºC...
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b) that the mean is greater than 38.5 ºC
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found
d) Find from what temperature the 5% of the coldest bodies are
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Weight (kgs)
1-3
4-6
7-9
10-12
Frequency
53
118
21
8
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Suppose the reaction temperature X (in °C) in a certain chemical process has a uniform distribution...
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probability that in a given month demand is between 2,200...
John knows that monthly demand for his product follows a normal distribution with a mean of...
John knows
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