; and (B) an assessment of whether the experiment has a differential impact on any group described in paragraph (1). (3) A schedule for conducting the experiment in accordance with the duration limit specified in subsection (f). (4) An estimate of the cost of conducting the experiment, to the extent practicable. (5) An estimate of the size of the study sample (such as the number of participating students or institutions) needed to determine if the experiment has statistically significant effects. (e) Limitation pending notice to Congress (1) Limitation The Secretary may not carry out an experiment at an experimental site under this section until a period of 60 days has elapsed following the date on which the Secretary submits to the authorizing committees the notice described in paragraph (2). (2) Notice to Congress The notice described in this paragraph is a written notice that includes— (A) a description of the experiment proposed to be carried out by the Secretary, including the rationale for the proposed experiment; (B) the policy-relevant questions the Secretary intends to evaluate through the experiment and an explanation of how the design of the experiment will allow the Secretary to best answer those questions; (C) a list of the specific statutory and regulatory requirements that the Secretary intends to waive with respect to an institution participating as an experimental site and the legal authority for such waivers; (D) an explanation of how the statutory and regulatory flexibility provided to an institution participating as an experimental site is expected to increase student success, as required under subsection (a)