Question 1 and 2 below since it's hard to read in the picture. Question 1 : Kennedy high school reported that the mean score on an end of semester physics exam was 508 with a student deviation of 121. Calculate the margin of error with a 95% confidence level for the data if the sample size was 200 students. Question 2: A factory has reported that 81% of their mechanical keyboards remain in a consumers household over a year. Assuming a z-score of 1.96, calculate the margin of error for a batch of 500 keyboards.

1. Kennedy High School reported that the mean see emester physios exam wass 508 with a standard deviation of 121. Calculate the margin of error with a 95%confidence level for the date If the sample wire was 200 students. 17.95% 16.77% 4.37% 14.12% 2. A factory has reported that 81% of their mechanical keyboards remain in a consumer's household over a year. Assuming a z-score of 1.96, calculate the margin of error for a batch of 500 keyboards. 2.2% 3.5% 8% 0.95% 3. Suppose 600 students were surveyed regarding their GPAs. The average GPA was found to be 2.75. Using a confidence level of 90%, what is the margin of error if the standard deviation is 0.457 4.73% O 14.04% O 9.5% 2.97% 4. Match the missing word to the phrase or sentence. 1. The of error is the estimation of error present in a survey or experiment. a. z-score b. margin 2. As sample sizes increase, the error in the survey will c. mean 3. Researchers choose a certain level of confidence because they want to be confident that the of a survey falls within a margin of error a certain percent of the time. d. decrease 4. Once a confidence level is chosen, an appropriate is used within the margin of error calculation, 5. In a harvest of 50 watermelons, farmers prefer at least 72%% of watermelons to be classified as "large." With a confidence level of 99%%, what is the margin of error? The margin of error is # 10.1%. The margin of error is # 1% The margin of error is 1:16.3%. The margin of error is 10.019%