A researcher studying the sleep habits of teens will select a random sample of n n
teens from the population to survey. The researcher will construct a t
t
-interval to estimate the mean number of hours of sleep that teens in the population get each night. Which of the following is true about the t
t
-distribution as the value of n
n
decreases from 40 to 20 ?

C= 5 9 (f−32) the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true? a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of 5 9 degree celsius. a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit. a temperature increase of 5 9 degree fahrenheit is equivalent to a temperature increase of 1 degree celsius. a) i only b) ii only c) iii only d) i and ii only