Assume a researcher found that the correlation between a test she had developed and exam performance was .5 in a study of 25 students. she had previously been informed that correlations under .30 are considered unacceptable. the 95% confidence interval was [0.131, 0.747]. can you be confident that the true correlation is at least 0.30?

Let f(x)=2x and g(x)=2x. graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ?me asap

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org

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.