Provide an appropriate response. Why are confidence intervals preferred over sig

Question

Provide an appropriate response. Why are confidence intervals preferred over significance tests by most researchers? they provide a range of plausible values for the parameter all of these they indicate whether or not the hypothesized parameter value is plausible since confidence intervals have a level of confidence associated with then, they give us more confidence in our decision regarding the null hypothesis they allow us to accept the null hypothesis if the hypothesized value is contained within the interval Ignoring the fact that the sample size is > 30. and to practice skills, could you assume the following data came from a normal distribution? The distance kicked using the 39 HELIUM-filled footballs kicked in the HELIUM FOOTBALL dataset on Blackboard Yes No If the 95% confidence interval for the proportion of all people that ate happy is (0.254, 354), what is the margin of error (expressed as a percent) for the study? You may assume the sample was large enough to use a normal approximation for the sampling distribution. 30.4% 0.060 5.0% Need to know the sample size to calculate

Explanation / Answer

5.

Correct option- All of the above.

6.

Correct option- Yes

7.

Margin of error = (0.354-0254)/2 = 0.05

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