Question
In: Statistics and Probability
We have weighed 8 randomly selected cinnamon buns from a pastry shop. The weights were according...
We have weighed 8 randomly selected cinnamon buns from a pastry
shop. The weights were according to
following (unit grams)
111, 85, 109, 124, 113, 127, 88, 101
(a) Calculate a 95% confidence interval for the average weight for
all
cinnamon buns at this pastry shop. Specify the conditions to be
met.
(b) Enter the margin of error for the interval from the (a) task.
We plan to do that
about the investigation at another patisserie. What can we do to
make one
less margin of error? Motivate the answer
Solutions
orchestra answered 1 year agoRelated Solutions
The weights of 89 randomly selected truck engines were found to have a standard deviation of...
The weights of 89 randomly selected truck engines were found to
have a standard deviation of 1.59 lbs. Calculate the 95% confidence
interval for the population standard deviation of the weights of
all new truck engines in this particular factory.
The weights of 3 randomly selected mattresses were found to have a standard deviation of 4.53....
The weights of 3 randomly selected mattresses were found to have
a standard deviation of 4.53. Construct the 95%
confidence interval for the population standard
deviation of the weights of all mattresses in this
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Find the Lower Endpoint and Upper Endpoint
The weights of 22 randomly selected mattresses were found to have a standard deviation of 3.17....
The weights of 22 randomly selected mattresses were found to
have a standard deviation of 3.17. Construct the 95% confidence
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The table lists height (in) and weights (lb) of randomly selected 8 students. Height (in) 60...
The table lists height (in) and weights (lb) of randomly
selected 8 students.
Height (in) 60 65 66 68 60 67 69 70
Weight (lb) 150 152 156 160 160 167 168 170
(a) Find the the value of coefficient of correlation r.
(b) Find the equation of the line of best best fit (trend line).
What does variable y represents?
(c) Estimate weight of a student from the same group who is 64
inches tall.
12 men from Pinellas County were randomly drawn from a population of 100,000 men and weighed....
12 men from Pinellas County were randomly drawn from a
population of 100,000 men and weighed. The average weight of a man
from the sample was found to be 150 pounds with a standard
deviation of 56 pounds, find the 90% confidence interval for the
true mean weight of men. Answer the following
What is the sample mean value?
[ Select ]
["206", "94", "56",...
The weights of four randomly and independently selected bags of tomatoes labeled 5.0 pounds were found...
The weights of four randomly and independently selected bags of
tomatoes labeled 5.0 pounds were found to be 5.3, 5.0, 5.6, and 5.4
pounds. Assume Normality. Answers part (a) and (b) below.
(a). Find a 95% confidence interval for the mean weight of all
bags of tomatoes. (__,__)
(b). Does the interval capture 5.0 pounds? Is there enough
evidence to reject a mean weight of 5.0 pounds? Explain.
The weights of four randomly and independently selected bags of tomatoes labeled 5.0 pounds were found...
The weights of four randomly and independently selected bags of
tomatoes labeled 5.0 pounds were found to be 5.1 ,.5.0, 5.2, and
5.1 pounds. Assume Normality.
Find a? 95% confidence interval for the mean weight of all bags
of tomatoes.
The weights of four randomly and independently selected bags of potatoes labeled 20 pounds were found...
The weights of four randomly and independently selected bags of
potatoes labeled 20 pounds were found to be 20.7, 21.4, 20.9,
and 21.2 pounds. Assume Normality. Answer parts (a) and (b)
below.
a. Find a 95% confidence interval for the mean weight of all
bags of potatoes.
b. Does the interval capture 20 pounds? Is there enough
evidence to reject a mean weight of 20 pounds?
A.The interval does not capture 20 pounds, so there is enough
evidence to reject...
the weights of four randomly and independently selected bags of potatoes labeled 20 pounds were found...
the weights of four randomly and independently selected bags
of potatoes labeled 20 pounds were found 21.7,22,20.5, and 21.9.
Assume Normality. Using a two sided alternative hypothesis should
you be able to reject a hypothesis that the population mean is 20
pounds using a significance level of 0.05 why or why not the
confidence interval is reported here I am 95% confidence the
population mean is between 20.4 and 22.6 pounds. B) test the
hypothesis that the population mean is...
2.The weights of four randomly and independently selected bags of potatoes labeled 20 pounds were found...
2.The weights of four randomly and independently selected bags
of potatoes labeled 20 pounds were found to be 21, 22, ,20.4, and
21.2
Assume Normality.
a. Using a two-sided alternative hypothesis, should you be
able to reject the hypothesis that the population mean is 20
pounds using a significance level of 0.05
Why or why not? The confidence interval is reported here: I
am
95%confident the population mean is between 20.1 and
22.2pounds.
b. Test the hypothesis that the population...
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