A private lake sells boating memberships and currently has 600 members. During the application process the potential members are
asked which recreational activity they do the most. Their choices are fishing, skiing, boarding, swimming, or tubing. The lake manager chooses clients according to their interests to maximize the use of all areas of the lake. Every month, the lake rangers randomly sample the boats on the lake and categorize them according to the activity they are doing. The lake manager performs a chi-square goodness-of-fit test using the following null hypothesis to see whether their samples differ significantly from what the original applications claim. H0:pfish=0.26,pski=0.21,pboard=0.30,pswim=0.12,ptube=0.11
In order to meet the conditions for independence and large counts for a chi-square goodness-of-fit test, which of the following represents all possible sizes of the monthly samples?
a. n≥30
b. 30≤n≤50
c. 46≤n≤60
d. n≥46
e. n≤60
The time taken for radio signal to the earth's surface we shall proceed as follows; time=(distance)/(speed) Distance=7.5×10^6 meters speed=3×10^8 meters/second therefore: Time=(7.5×10^6)/(3×10^8)=0.025 seconds We conclude that it will take the signal 0.025 seconds to reach the surface of the earth.
