) A smart phone manufacturer wants to determine the average battery time that its new smart phone will get. The manufacturer will test 100 smart phones. Match the strategies to their corresponding sampling techniques. ______ The manufacturer asks 100 of her friends who have the phone if she can borrow their phones to test. ______ The manufacturer tests every 1000th smart phone that comes off the assembly line. ______ The manufacturer tests 20 smart phones from each of its five equally sized distributors. ______ The manufacturer finds three small communities that have dry moderate and humid climates and every smart phone from each of these three communities is tested. ______The manufacturer uses a computer to randomly select 150 smart phone serial numbers and tests all 150 phones with these serial numbers.

a. Cluster Sampling

b. Stratified Sampling

c. Convenience Sampling

d. Simple Random Sampling

e. Systematic Sampling