A mind reading experiment is done in which a subject tries t…

A mind reading experiment is done in which a subject tries to correctly identify which of 4 cards the researcher has randomly picked, where each card is equally likely. This is repeated for 200 trials. The null hypothesis is that the subject is guessing at random, while the alternative is that the subject can read minds and can guess the card selected at a rate higher than guessing at random.  Which of the following would be a Type 2 error in this situation?

Assume a researcher asks 98 Penn State students the followin…

Assume a researcher asks 98 Penn State students the following two questions   What is the highest degree you plan to achieve? (bachelors, masters, doctorate) Are you an only child?  (yes, no) The responses are summarized below. Yes    No    Total Bachelors 31 29 60 Masters 10 17 27 Doctorate 7 4 11 Total 48 50 98 When considering ‘Yes’ and ‘Bachelors’, what is the correct calculation for and interpretation of the expected count?