MATLAB: An Introduction with Applications
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Transcribed Image Text:6.2.13
Use the given confidence interval to find the margin of error and the sample mean.
(14.9,24.7)
The sample mean is
(Type an integer or a decimal.)
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- 6.2.14 Use the given confidence interval to find the margin of error and the sample mean. (3.07,7.43) The sample mean is. (Type an integer or a decimal.)arrow_forwardA statistics professor for STAT 250 wants to investigate how long it takes students to complete exercise . The time is recorded in minutes. A student who completed the exercise in 50:30 (50 minutes and 30 seconds) would be recorded as 50.5 minutes a) Summary statistics: Column Mean Std. dev. Time 47.20 8.66 Are these measures you obtained parameters or statistics in part (a) and why? Answer this question in one sentence? Does your confidence interval capture the mean time calculated in part (a)? Answer this question in one sentence. If we were to take 500 samples of size 26 from this population and construct a confidence interval for each sample, approximately how many of these confidence intervals would be expected to capture the mean time calculated in part (a)? Answer this question and provide your reasoning in one or two sentences. b) Summary statistics: Column Mean Std. dev. Sample 6 (Time) 48.33 10.50 Are these measures you found…arrow_forwardcould someone help me solve this questionarrow_forward
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