According to a recent survey, americans get a mean of 7 hours of sleep per night. a random sample of 50 students at west virginia university revealed the mean length of sleep last night was 6 hours and 48 minutes (6.8 hours). the standard deviation of the sample was 0.9 hour. at the 5% level of significance, it is reasonable to conclude students at west virginia sleep less than the typical american? compute the p-value

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.