It is assumed that at least 90% of Juvenile first-time criminals are given probation upon the admission of guilt. Test this hypothesis at a 0.02 level of significance, if a sample of 92 juvenile criminal convictions shows 78 juveniles receiving probation. Make sure to sate your null and alternative hypotheses and your conclusion

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%