Doug believed that weather forecasteres always predicted

Reference no: EM13625122

Doug randomly sampled 30 weather forecasters from around the country and kept track of how far away the actual high temperature was for a day from their predicted high temperature for the day. (positive values mean that their predicted high was higher than the actual high.) Doug believed that weather forecasteres always predicted temperatures higher than what actually happened because people like warmer temperatures. He obtained a sample mean as 0.8 degrees. His hypothesis were Ho: mean=0 degrees and Ha:mean > 0 degrees. He performed a hypothesis test and obtained a p-value of 0.26. This means:

A. 26% of all random samples of 30 weather forecasters from around the country would give a sample mean of 0.8 degrees or more given that the true man for all weather forecasters around the country is 0 degrees.

B. The probability that the sample mean is 0.8 degrees is 0.26.

C. The probability that the true mean is 0.8 degrees or more is 0.26.

D. The probability that the true mean for all weather forecasters around the country is more than 0 degrees is 0.26.

E. The probability that the true mean for all weather forecasters around the country is 0 degreees is 0.26.

Reference no: EM13625122

Questions Cloud

If you had the chance to set up a simple experiment at your : if you had the chance to set up a simple experiment at your workplace to test a hypothesis would you have your research

The catapult on an aircraft carrier can take an aircraft : the catapult on an aircraft carrier can take an aircraft weighing 300000 n from 0 to 82 ms in 11 seconds at which time

If you had the chance to set up a simple experiment at your : if you had the chance to set up a simple experiment at your workplace to test a hypothesis would you have your research

If the tube elongates 3mm and its circumfrence decreases : a thin-walled tube is subjected to an axial force of 40 kn. if the tube elongates 3mm and its circumfrence decreases

Doug believed that weather forecasteres always predicted : doug randomly sampled 30 weather forecasters from around the country and kept track of how far away the actual high

A rigid tank is divided into two equal parts same volume : a rigid tank is divided into two equal parts same volume by a partition. initially one side of the tank is filled

The catapult on an aircraft carrier can take an aircraft : the catapult on an aircraft carrier can take an aircraft from 0 to 215 mph in 12 seconds at which time the aircraft

Before being injected into a furnace pulverized coal is : before being injected into a furnace pulverized coal is preheated by passing it through a cylindrical tube whose

Consider two identical 43 microcoulomb point charges placed : consider two identical 43 microcoulomb point charges placed 89 cm apart. let there be a 1 nc 1 nanocoulomb 1e-9

User Account

All Pages