A quality control engineer is testing the battery life of a new smartphone. The company is advertising that the battery lasts 24 hours on a full-charge, but the engineer suspects that the battery life is actually less than that.

They take a random sample of 50 of these phones to see if their average battery life is significantly less than 24

hours.

Let u represent the mean battery life for this population of phones.

Afootball is throw by a quarterback to a receiver

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Students at a high school were asked about their favorite outdoor activity. the results are shown in the two-way frequency table below. fishing camping canoeing skiing total boys 36 44 13 25 118 girls 34 37 22 20 113 total 70 81 35 45 231 select all the statements that are true based on the given table. more girls chose camping as their favorite outdoor activity than boys. more girls chose canoeing as their favorite outdoor activity than those who chose skiing. more boys chose skiing as their favorite outdoor activity than girls. there were more boys surveyed than girls. twice as many students chose canoeing as their favorite outdoor activity than those who chose fishing. more students chose camping as their favorite outdoor activity than the combined number of students who chose canoeing or skiing.