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College students tested to see if how well you know a person affects your ability to detect alle from that person. To do this, they came up with 10 statements about a person in their group. Five of these statements were true and five were false. The group tried to make up statements that nobody (not even close friends) would know if they were true or false. The students then presented these statements to people that fit in three groups: close friends, acquaintances, and complete strangers and counted how many statements each person correctly identified as true or false. A summary of the results are as follows. Sample size Mean SD Close Friends (C) 27 6.1 1.50 31 4.8 1.58 Acquaintance (A) Strangers (5) 28 4.9 1.51 Anull distribution was generated for this example and is shown. What is the strength of evidence against the null hypothesis? a. Strong evidence against the null b. Moderate evidence against the null c. Weak evidence against the null
d. No evidence against the null