Compared to a z* critical value, the t* critical value for a given confidence level.
is always bigger

is always smaller

depends on the degrees of freedom

is always the same

depends on the confidence level

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.