25 graduating seniors form Stellar High School are randomly selected. A mean GPA of 3.42 is calculated with a margin of error ±0.38 for a 95% confidence interval. What is the interval estimate of the population mean?

A) 2.87 < μ <3.63
B) 3.04 < μ <3.80
C) 3.04 > μ > 3.80
D) 3.06 > μ > 3.78

Answer is B.

What could explain what happened when the time was equal to 120 minutes

In new york city at the spring equinox there are 12 hours 8 minutes of daylight. the longest and shortest days of the year very by two hours and 53 minutes from the equinox in this year the equinox falls on march 21 in this task you use trigonometric function to model the hours of daylight hours on certain days of the year in new york city a. what is the independent and dependent variables? b. find the amplitude and the period of the function. c. create a trigonometric function that describes the hours of sunlight for each day of the year. d. graph the function you build in part c. e. use the function you build in part c to find out how many fewer daylight hours february 10 will have than march 21. you may look at the calendar.

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.