A factory that manufactures bolts is performing a quality control experiment. Each object should have a length of no more than 16 centimeters. The factory believes that the length of the bolts exceeds this value and measures the length of 60 bolts. The sample mean bolt length was 16.03 centimeters. The population standard deviation is known to be o = 0.19 centimeters. What is the test statistic z? Ex: 1.23 What is the p-value? Ex. 0.123 Does sufficient evidence exist that the length of bolts is actually greater than the mean value at a significance level of a = 0.05? Select v

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.