The economist would like to test the claim that the percent of thirty-year fixed-rate mortgage loans that have a 4.75 percent interest rate is less than 22%. Sample size =40 thirty-year fixed-rate mortgage loans
Sample proportion =0.125

Calculate the test statistic using the formula

where:

p′ = sample proportion,
n = sample size, and
p0 = population proportion under the null hypothesis
Round your answer to 2 decimal places.

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

Write the equation in logarithmic form m^x=n

What is the factor form of x^2-9x+14