CCSS.Math.Content.HSS.IC.B.4

What do we use to estimate unknown parameters?

• Hypothesis Test
• Confidence Interval
• Trig Identity
• Guess and check

Tags

CCSS.Math.Content.HSS.IC.B.4

What percentage of girls have blonde hair?

• 30%
• 32%
• 29%
• 40%

Tags

CCSS.Math.Content.HSS.IC.B.4

What percentage of males drive sports cars?

• 35%
• 16.25%
• 65%
• 25%

Tags

CCSS.Math.Content.HSS.IC.B.4

What percent of the total population surveyed were electrical engineers that like math?

• 33.9%
• 48.6%
• 16.5%
• 21.7%

Tags

CCSS.Math.Content.HSS.IC.B.4

What does this symbol represent?

• population proportion
• parameter
• sample proportion
• population sample

Tags

CCSS.Math.Content.HSS.IC.B.4

Which of the following is the confidence interval for the response "Bus?" (HINT: use Margin of Error)

• (17.9, 24.1)

• (18, 24)

• (18, 36)

• (17, 24)

Tags

CCSS.Math.Content.HSS.IC.B.4

For a sample, the 95% confidence interval is (0.202, 0.482).

What is the margin of error of this sample?

• 0.28

• 0.14

• 0.342

• 0.684

Tags

CCSS.Math.Content.HSS.IC.B.4

What type of Sampling?

Based on 12,500 responses from 42,000 surveys sent to its alumni, a major university estimated that the annual salary of its alumni was 92,500.

• Random

• Convenience

• Systematic

• Voluntary

Tags

CCSS.Math.Content.HSS.IC.B.4

For a class project, a student in a statistics class surveys the monthly rent for 32 unfurnished one-bedroom apartments in Boston and finds the mean monthly rent to be $1400 with a standard deviation of $220.

Find the 95% confidence interval for the population mean Round to the nearest hundredth

• [1322.22, 1477.78]

• [1395.69, 1404.31]

• [1211.22, 1588.78]

• [905.03, 1894.97]

Tags

CCSS.Math.Content.HSS.IC.B.4

A sample of 121 high school seniors were surveyed on their level of school spirit on a scale of 0-100. The sample mean of this survey is 86. The known population standard deviation is 14 for all seniors in the class. Which of these is a 95% confidence interval for the population mean?

• [82.7, 89.3]

• [83.5, 88.5]

• [83.9, 88.1]

• [85.9, 86.1]

Tags

CCSS.Math.Content.HSS.IC.B.4