Question
In: Statistics and Probability
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 a mean weight of 20 pounds. It is not plausible the population mean weight is 20 pounds.
B.The interval captures 20 pounds, so there is enough evidence to reject a mean weight of 20 pounds. It is not plausible the population mean weight is 20 pounds.
C.The interval captures 20 pounds, so there is not enough evidence to reject a mean weight of 20 pounds. It is plausible the population mean weight is 20 pounds.
D.The interval does not capture 20 pounds, so there not is enough evidence to reject a mean weight of 20 pounds. It is plausible the population mean weight is 20 pounds.
E.There is insufficient information to make a decision regarding the rejection of 20 pounds. The sample size of 4 bags is less than the required 25.
Solutions
orchestra answered 2 years agoRelated Solutions
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
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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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The weights of four randomly and independently selected bags of
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(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.
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> bears <- read.table(file="male_bears.csv", header=T,
sep=",")
The researcher then runs the following code in R to fit a simple
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i=1,2...n.Notethatsomevaluesintheoutputhave been removed.
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P - Parameter Statement...
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