Mathematics, 17.12.2020 03:00 u8p4
The volleyball coach at a large high school wants to estimate the number of times players spike the ball during any given game. She randomly selects 30 games and records the number of spikes. The coach constructs a 95% confidence interval for the true mean number of spikes players make in a game. Which of the following would decrease the margin of error?
using a sample of size 15
using a sample of size 25
constructing a 90% confidence interval
constructing a 99% confidence interval
Answers: 3
Mathematics, 21.06.2019 17:30
33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.
Answers: 1
Mathematics, 21.06.2019 18:10
Jordan has $5.37, which he is using to buy ingredients to make salsa. he is buying one red pepper for $1.29 and three pounds of tomatoes. if jordan has exactly the right amount of money he needs, what is the price per pound of the tomatoes? choose the correct equation to represent this real-world problem. solve the equation and verify the reasonableness of your answer. a pound of tomatoes costs .
Answers: 1
Mathematics, 21.06.2019 19:20
The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to
Answers: 3
The volleyball coach at a large high school wants to estimate the number of times players spike the...
Physics, 04.03.2021 14:00
Mathematics, 04.03.2021 14:00
Biology, 04.03.2021 14:00
Mathematics, 04.03.2021 14:00
English, 04.03.2021 14:00
History, 04.03.2021 14:00
Mathematics, 04.03.2021 14:00
Mathematics, 04.03.2021 14:00
Mathematics, 04.03.2021 14:00
Mathematics, 04.03.2021 14:00
Mathematics, 04.03.2021 14:00
Mathematics, 04.03.2021 14:00