In order to monitor safety levels, scientists take samples of 7 randomly selected batches to test the null hypothesis H0: u=.8 vs Ha: u does not equal .8.  On this particular day, measurements were: .87, .75, .84, .83, .90, .68, .87. Using this data, what is the p-value of this test?

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Q: Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of…

A: Here we've given that ,the IQ scores were obtained for 20 randomly selected sets of couples , n =…