Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 133 to 192 cm and weights of 39 to 150 kg. Let the predictor variable x be the first variable given. The 100 paired measurements yield x overbarequals167.21 cm, y overbarequals81.33 kg, requals0.326, P-valueequals0.001, and ModifyingAbove y with caretequalsnegative 108plus1.01x. Find the best predicted value of ModifyingAbove y with caret (weight) given an adult male who is 158 cm tall. Use a 0.05 significance level.

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.