Question
In: Statistics and Probability
he following data represent the pH of rain for a random sample of 12 rain dates....
he following data represent the pH of rain for a random sample of 12 rain dates. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. 5.20 5.72 4.38 4.80 5.02 4.57 4.74 5.19 5.43 4.76 4.56 5.71
(a) Determine a point estimate for the population mean.
(b) Construct and interpret a 95% confidence interval for the mean pH of rainwater.
(c) Construct and interpret a 99% confidence interval for the mean pH of rainwater.
Solutions
Expert Solution
When finding the confidence intervals, if there are outliers in the given data, then the mean value will be greater and the variance will be larger. When the outliers are removed, the confidence interval will shift to the left and confidence interval will be narrower.
orchestra answered 1 year agoRelated Solutions
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample
of 12 rain dates. A normal probability plot suggests the data could
come from a population that is normally distributed. A boxplot
indicates there are no outliers. Complete parts (a) through (d)
below. 5.30 5.72 4.99 4.80 5.02 4.57 4.74 5.19 5.29 4.76 4.56 4.91
(a) Determine a point estimate for the population mean. A point
estimate for the population mean is nothing. (Round to two decimal
places...
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample
of 12 rain dates. A normal probability plot suggests the data could
come from a population that is normally distributed. A boxplot
indicates there are no outliers. Complete parts a) through d)
below. 5.05 5.72 5.24 4.80 5.02 4.59 4.74 5.19 5.29 4.76 4.56 5.70
LOADING... Click the icon to view the table of critical
t-values.
c) Construct and interpret a 99%
confidence interval for the mean pH...
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample
of 12 rain dates.
A normal probability plot suggests the data could come from a
population that is normally distributed. A boxplot indicates there
are no outliers. Complete parts (a) through (d) below 5.58 5.58
5.72 5.24 5.24 4.80 5.02 5.03 5.03 4.74 5.19 4.87 4.87 4.76 4.56
4.91 4.91
(a) Determine a point estimate for the population mean. A point
estimate for the population mean is nothing....
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample
of 12 rain dates. A normal probability plot suggests the data could
come from a population that is normally distributed. A boxplot
indicates there are no outliers. Complete parts a) through d)
below.
5.58 5.72 4.89 4.80 5.02 4.58 4.74 5.19 4.61 4.76 4.56 5.69
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample
of 12 rain dates. A normal probability plot suggests the data could
come from a population that is normally distributed. A boxplot
indicates there are no outliers. Complete parts (a) through (d)
below.
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5.585.58
5.72
4.624.62
4.80
5.02
4.684.68
4.74
5.19
5.345.34
4.76
4.56
5.305.30
(a) Determine a point estimate for the population mean.
A point...
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample
of 12 rain dates. A normal probability plot suggests the data could
come from a population that is normally distributed. A boxplot
indicates there are no outliers. Complete parts (a) through (d)
below.
5.305.30
5.72
4.994.99
4.80
5.02
4.574.57
4.74
5.19
5.345.34
4.76
4.56
4.914.91
(a) Determine a point estimate for the population mean.
A point estimate for the population mean is
nothing.
(Round to two decimal places...
The following data represent the pH of rain for a random sample of 12 rain dates...
The following data represent the pH of rain for a random sample
of 12 rain dates in a particular region. A normal probability plot
suggests the data could come from a population that is normally
distributed. A boxplot indicates there are no outliers. The sample
standard deviation is s=0.333. Construct and interpret a 95%
confidence interval for the standard deviation pH of rainwater in
this region. 4.67 5.23 5.09 4.70 4.69 4.80 5.77 4.87 4.91 4.62 4.72
4.66 Click the...
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample
of 12 rain dates. A normal probability plot suggests the data could
come from a population that is normally distributed. A boxplot
indicates there are no outliers. Complete parts a) through d)
below. 5.585.58 5.72 4.624.62 4.80 5.02 4.574.57 4.74 5.19 5.435.43
4.76 4.56 5.715.71 (a) Determine a point estimate for the
population mean. A point estimate for the population mean is
nothing. (Round to two decimal places...
The following data represent the pH of rain for a random sample of 12 rain dates...
The following data represent the pH of rain for a random sample
of 12 rain dates in a particular region. A normal probability plot
suggests the data could come from a population that is normally
distributed. A boxplot indicates there are no outliers. The sample
standard deviation is sequals0.344. Construct and interpret a 99%
confidence interval for the standard deviation pH of rainwater in
this region
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample
of 12 rain dates. A normal probability plot suggests the data could
come from a population that is normally distributed. A boxplot
indicates there are no outliers. Complete parts (a) through (d)
below. 5.05 5.72 4.38 4.80 5.02 4.68 4.74 5.19 4.61 4.76 4.56 5.54
(a) Determine a point estimate for the population mean. A point
estimate for the population mean is 4.92. (Round to two decimal
places...
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