Asimple random sample with n=54 provided a sample mean of 22.5 and a sample standard deviation of 4.4.
a. develop a 90% confidence interval for the population mean.
b. develop a 95% confidence interval for the population mean.
c. develop a 99% confidence interval for the population mean.
d. what happens to the margin of error and the confidence interval as the confidence level is increased?

What are the solutions to the equation 4x2+3x=24-x

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h