Mathematics, 28.03.2020 00:55, postorivofarms

Data on ﬁfth-grade test scores (reading and mathematics) for 420 school districts in California yield average score Y = 655.2 and standard deviation sY = 19.1. Construct a 95 % conﬁdence interval for the population mean test scores. Interpret.

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Data on ﬁfth-grade test scores (reading and mathematics) for 420 school districts in California yiel...