Mathematics, 18.12.2019 02:31 05leslun42715
The mean income per person in the united states is $50,000, and the distribution of incomes follows a normal distribution. a random sample of 10 residents of wilmington, delaware, had a mean of $60,000 with a standard deviation of $10,000. at the 0.05 level of significance, is that enough evidence to conclude that residents of wilmington, delaware, have more income than the national average?
a. state the null hypothesis and the alternate hypothesis. b. state the decision rule for 0.05 significance level. reject h0 if t > . compute the value of the test statistic. d. is there enough evidence to substantiate that residents of wilmington, delaware, have more income than the national average at the 0.05 significance level?
Answers: 3
Mathematics, 21.06.2019 20:30, Cheyenne8694
Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for
Answers: 2
Mathematics, 21.06.2019 21:30, baltazmapa629n
The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?
Answers: 1
The mean income per person in the united states is $50,000, and the distribution of incomes follows...
Computers and Technology, 08.03.2021 04:50
English, 08.03.2021 04:50
Mathematics, 08.03.2021 04:50
Computers and Technology, 08.03.2021 04:50
History, 08.03.2021 04:50
Mathematics, 08.03.2021 04:50