In general, which interval is wider, 90% or 95%? Why?
90%- (5.035, 5.824)
95%- (4.956, 5.903)
Quetion :In general, which interval is wider, 90% or 95%? Why?
confidence interval of 95 % is wider than 90 %
Because critical value of 95 % is higher than 90 %
In general, which interval is wider, 90% or 95%? Why? 90%- (5.035, 5.824) 95%- (4.956, 5.903)
A 90% CI will have a ______ interval than a 95% CI A. wider B. narrower C. the same D. depending on the degrees of freedom E. depending on whether we work with mean or proportion.
confidence interval is wider
A confidence interval is wider if a. A larger sample (n) is used b.A larger t or z value is used. C. It is changed from a 95% Cl to a 90% CI d. Both (b) and (c) e. All of the above
A 99% confidence interval will be ___________ than a 90% confidence interval. Wider, more narrow, or same width?
Which must be true about a 95% confidence interval based on a given sample? I. The interval is wider than a 99% confidence interval would be. II. The interval contains 95% of the population. III. The interval is narrower than a 90% confidence interval would be.
The rejection region for a 95% confidence interval is wider than a 99% CI true or false
Question 5: Which statement is true: (a) A 90% confidence interval for μ is wider than a 95% confidence interval for μ (b) The width (Le, the length) of a confidence interval is equal to its margin of error (c) Decreasing the sample size will make the confidence wider (d) The standard deviation of the sample mean is larger than the population standard deviation o. Question 6. A test of H0 : μ-128 against Ha : μ > 12.8 has...
suppose a 95% confidence interval is (0.72 0.81). To be 90% confident, the range of percentages would be narrower, because higher confidence requires smaller MOE wider, because higher confidence requires a larger MOE wider, because higher confidence requires a smaller MOE narrower, because higher confidence requires a larger MOE
Does a confidence interval get wider or narrower if: (a) the percent of desired confidence decreases from 95% to 90%? (b) the size of the sample used to produce the confidence interval is decreased?
mean Which intorval is wider? Iifl converient, use technology lo You are the sample mean andthe population standard devide. Use ts construct the confidence intervals A random sample of 34 gas grille has a mean price of $644 10 Assume the population standard deviation is $56 30 The 90% confidence intervals Round to one decimal place as needed) The 95% colder cemervalsOD Round to one decimal place as needed Which interval is wider? Choose the conect anerer below O The...
3. A 95% confidence interval for a population proportion yielded the interval (.245, .355). Compute the margin of error. Compute the sample proportion. Will a 99% confidence interval be wider or narrower? Explain why or why not.