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Hello student, in the given question, first we have to determine, determine if changing the work week, if changing the work week, the work week influences production, influences production, we need to conduct here the paired sample 2 test, paired sample e test with 0 .05 level of significance, in second we have the null hypothesis, null hypothesis as there is, there is no difference between, no difference between the mean number of, the mean number of units, units produced, produced before and after, before and after the change in work week, the change in work week, therefore the null hypothesis is h0 is mu of d is equals to 0, where mu of d is the population mean difference before, between before and after the change in the work week, now third the alternative hypothesis is, alternative hypothesis is that there is, there is a difference, a difference between the mean number of, the change in work week, the change in work week, therefore here the alternative hypothesis as h1 is mu d which is the population mean difference is not equals to 0, now in fourth point we have to conduct here, conduct the sign test, sign test, we need to calculate here the differences between…