Search results
Results From The WOW.Com Content Network
Question: If you construct a 95% confidence interval then: Group of answer choices You will definitely use a z-score of 1.96 The interval gets smaller as your sample size gets smaller There is a 95% chance the population parameter is inside the interval The interval gets bigger as your measure of dispersion gets small More than one of the above.
The manufacturer wants a 95% confidence interval for the true mean weight of all if its peanut jars. What z-score should be used when constructing the interval? Step 1: ...
A 95% confidence interval for customer spending is ($17, $43). What is the upper bound of the 99% confidence interval for this same customer spending data? Be sure to round your answer to 2 decimal places. Please use the following z-scores: z-score for a 99% CI = 2.58 z-score for a 98% CI = 2.33 z-score for a 95% CI = 1.96 z-score for a 90% CI ...
What z score would be used for a 99% confidence interval with a sample size of 12? B. What z score would be used to create a 95% confidence interval that has a sample size of 27? C. What z score is used create a 90% confidence interval with a sample size of n=30 things? D. What is the area under a standard normal distribution between z = -1.16 ...
Construct a 95% confidence interval estimage of the proportion of adult Seattle residents who don't believe they can contract an STI. (Use a z score of 1.96 for your computations.) In a survey funded by the UW school of medicine, 750 of 1000 adult Seattle residents said they did not believe they could come down with a sexually transmitted ...
A 95% confidence interval is figured by finding: a. the Z score for the bottom 5% of the distribution. b. the Z score for the upper 95% of the distribution. c. the cutoff points for the lower 2.5% and the upper 2.5% of the distribution. d. the cutoff points for the lower 5% and the upper 5% of the distribution. Here’s the best way to solve it.
The Z-score associated with 95% is 1.96. If the sample mean is 200 and the standard deviation is 30, find the upper limit of the 95% confidence interval. Select an answer: 141.2 180.4 219.6 258.8 Which of the following would most likely require a two-tail test? Testing to see if.
The standard of 95% confidence will be used. 95% confidence corresponds to a z-score of 1.96. Therefore, the confidence value is 1.96. s = sample standard deviation
Step 1. The FDA goes ahead and increases the confidence level from 80% to 95%. If the sample size is 100 cheeseburgers, the sample average is 663 calories, the estimated standard deviation is 50 calories, and the z-score for the 95% confidence interval is 1.96 . What is the 95% confidence interval of the average calories in a cheeseburger?
Question: As an economist, you want to construct a 95% confidence interval (z-score = 1.96) for the proportion of adults in the U.S. who believe that economic conditions under President Biden are getting better a) A Poll estimates that the proportion in population who believe economic conditions under President Biden is getting better is 0.62.