Mathematics, 20.09.2020 15:01, Homepage10
You are trying to estimate the average amount a family spends on food during a year. In the past the standard deviation of the amount a family has spent on food during a year has been approximately $900. If you want to be 99% sure that you have estimated average family food expenditures within $50, how many families do you need to survey
Answers: 2
Mathematics, 22.06.2019 04:00, warrior4516
What is the answer to this problem? ignore the work. what is the correct answer?
Answers: 1
Mathematics, 22.06.2019 04:40, anhekb
The accompanying normal probability plot was constructed from a sample of 30 readings on tension for mesh screens behind the surface of video display tubes used in computer monitors. does it appear plausible that the tension distribution is normal? the given probability is has a significant downward curve, so it is plausible that the tension distribution is normal. the given probability is has a significant downward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is plausible that the tension distribution is normal. the given probability is has a significant upward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is not plausible that the tension distribution is normal.
Answers: 1
You are trying to estimate the average amount a family spends on food during a year. In the past the...
Mathematics, 14.04.2021 01:20
Physics, 14.04.2021 01:20
English, 14.04.2021 01:20
Mathematics, 14.04.2021 01:20
Arts, 14.04.2021 01:20
Biology, 14.04.2021 01:20