stats

The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 3030 hours and the median is 26.226.2 hours. Twenty-four of the families in the sample turned on the television for 1515 hours or less for the week. The 11th percentile of the data is 1515 hours. Step 2 of 5 : Approximately how many families are in the sample? Round your answer to the nearest integer.

218

The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 3030 hours and the median is 26.226.2 hours. Twenty-four of the families in the sample turned on the television for 1515 hours or less for the week. The 11th percentile of the data is 1515 hours. Step 4 of 5 : What is the value of the 50th percentile?

26.6

A manufacturer makes bags of popcorn and bags of potato chips. The average weight of a bag of popcorn is supposed to be 3.023.02 ounces with an allowable deviation of 0.030.03 ounces. The average weight of a bag of potato chips is supposed to be 5.035.03 ounces with an allowable deviation of 0.010.01 ounces. A factory worker randomly selects a bag of popcorn from the assembly line and it has a weight of 3.033.03 ounces. Then the worker randomly selects a bag of potato chips from the assembly line and it has a weight of 5.055.05 ounces. Which description closely matches the findings on the assembly line?

The popcorn bag assembly line is closer to the specifications given because its z-score is closer to the standard than the potato chip bag assembly line.

A/An measures the number of standard deviations that a particular value is away from the mean.

Z- Score

The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 3030 hours and the median is 26.226.2 hours. Twenty-four of the families in the sample turned on the television for 1515 hours or less for the week. The 11th percentile of the data is 1515 hours. Step 5 of 5 : Based on the given information, determine if the following statement is true or false. The first quartile is less than 1515 hours.

false

The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 3030 hours and the median is 26.226.2 hours. Twenty-four of the families in the sample turned on the television for 1515 hours or less for the week. The 11th percentile of the data is 1515 hours. Step 1 of 5 : Based on the given information, determine if the following statement is true or false. The 56th percentile is greater than or equal to 2525 hours.

true

The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 3030 hours and the median is 26.226.2 hours. Twenty-four of the families in the sample turned on the television for 1515 hours or less for the week. The 11th percentile of the data is 1515 hours. Step 3 of 5 : Based on the given information, determine if the following statement is true or false. Approximately 109109 families turned on their televisions for less than 26.226.2 hours.

true