Statistics Milestone 5 Exam / Questions with Certified Solutions. | 2025
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Edwin conducted a survey to find the percentage of people in an area who smoked regularly. He
defined the label "smoking regularly" for males smoking 30 or more cigarettes in a day and for
females smoking 20 or more. Out of 635 persons who took part in the survey, 71 are labeled as
people who smoke regularly.
What is the standard error for the sample proportion? Answer choices are rounded to the
thousandths place. - (answers)0.013
The data below shows the grams of fat for a variety of snacks. Morris wants to calculate the
standard error of the sample mean for this set of data.
SnackGrams of FatSnack 19Snack 213Snack 321Snack 430Snack 531Snack 631Snack
734Snack 825Snack 928Snack 1020
What is the standard error for this set of data? - (answers)2.63
The government claims that the average age of Californians is 34 years. Joe hypothesizes that the
average age of the population of California is not equal to 34 years. He records a sample mean
equal to 37 and states the hypothesis as μ = 34 vs μ ≠ 34.
What type of test should Joe do? - (answers)Two-tailed test
Henri has calculated a z-test statistic of -2.73.
What is the p-value for this left-tailed test? Answer choices are rounded to the thousandths place.
- (answers)0.003
Brad recorded the number of visitors at the local science museum during the week:
DayVisitorsTuesday18Wednesday24Thursday28Friday30
He expected to see 25 visitors each day. To answer whether the number of visitors follows a
uniform distribution, a chi-square test for goodness of fit should be performed. (alpha = 0.10)
What is the chi-squared test statistic? Answers are rounded to the nearest hundredth. -
(answers)3.36
LATEST UPDATED
Edwin conducted a survey to find the percentage of people in an area who smoked regularly. He
defined the label "smoking regularly" for males smoking 30 or more cigarettes in a day and for
females smoking 20 or more. Out of 635 persons who took part in the survey, 71 are labeled as
people who smoke regularly.
What is the standard error for the sample proportion? Answer choices are rounded to the
thousandths place. - (answers)0.013
The data below shows the grams of fat for a variety of snacks. Morris wants to calculate the
standard error of the sample mean for this set of data.
SnackGrams of FatSnack 19Snack 213Snack 321Snack 430Snack 531Snack 631Snack
734Snack 825Snack 928Snack 1020
What is the standard error for this set of data? - (answers)2.63
The government claims that the average age of Californians is 34 years. Joe hypothesizes that the
average age of the population of California is not equal to 34 years. He records a sample mean
equal to 37 and states the hypothesis as μ = 34 vs μ ≠ 34.
What type of test should Joe do? - (answers)Two-tailed test
Henri has calculated a z-test statistic of -2.73.
What is the p-value for this left-tailed test? Answer choices are rounded to the thousandths place.
- (answers)0.003
Brad recorded the number of visitors at the local science museum during the week:
DayVisitorsTuesday18Wednesday24Thursday28Friday30
He expected to see 25 visitors each day. To answer whether the number of visitors follows a
uniform distribution, a chi-square test for goodness of fit should be performed. (alpha = 0.10)
What is the chi-squared test statistic? Answers are rounded to the nearest hundredth. -
(answers)3.36
