Mathematics, 15.01.2020 22:31 starreee
Suppose a baker claims that the average bread height is more than 15cm. several of this customers do not believe him. to persuade his customers that he is right, the baker decides to do a hypothesis test. he bakes 10 loaves of bread. the mean height of the sample loaves is 17 cm with a sample standard deviation of 1.9 cm. the heights of all bread loaves are assumed to be normally distributed. the baker is now interested in obtaining a 95% confidence interval for the true mean height of his loaves. what is the lower bound to this confidence interval? 2 cm (round to 2 decimal places) what is the upper bound to this confidence interval? cm (round to 2 decimal places) for the following situations, use rstudio to find the appropriate t-critical values that would be needed to construct a confidence interval. round all critical values to the second decimal place. 1. n = 15, confidence level is 95%, x= 35 and s = 2.7, t-critical value- 2, n = 37, confidence level is 99%, x= 82 and s = 5.9 t-critical value- 2 3, n 1009, confidence level is 90%, x 0.9 and s-0.04 t- critical value = 2 2
Answers: 1
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Suppose a baker claims that the average bread height is more than 15cm. several of this customers do...
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