Researchers from Germany Claimed That the Risk of a Heart

Short Answer

Researchers from Germany claimed that the risk of a heart attack for a working person may be as much as 50% greater on Monday than on any other day. In an attempt to verify their claim, they surveyed 420 working people who had recently had heart attacks and recorded the day on which their heart attacks occurred: Do the data present sufficient evidence to indicate that there is a difference in the incidence of heart attacks depending on the day of the week? Test using = 0.05.
Compute :
______________
Reject when > ______________.
Conclude that there is ______________ evidence to indicate a difference in frequency of occurrence of a heart attack from day to day.