Mathematics, 17.05.2021 06:50 marjorieheckaman
A pool supply company sells 50-pound buckets of chlorine tablets. A customer believes that the company may be underfilling the buckets. To investigate, an inspector is hired. The inspector randomly selects 30 of these buckets of chlorine tablets and weighs the contents of each bucket. The sample mean is 49.4 pounds with a standard deviation of 1.2 pounds. The inspector would like to know if this provides convincing evidence that the true mean weight of the chlorine tablets in the 50-pound buckets is less than 50 pounds, so he plans to test the hypotheses H0: μ = 50 versus Ha: μ < 50, where μ = the true mean weight of all 50-pound buckets of chlorine tablets. The conditions for inference are met. What are the appropriate test statistic and P-value?
Find the t-table here and the z-table here.
t = –2.74. The P-value is 0.0031.
z = –2.74. The P-value is 0.0031.
t = –2.74. The P-value is between 0.005 and 0.01.
z = –2.74. The P-value is between 0.005 and 0.01.
Answers: 3
Mathematics, 21.06.2019 16:20
Browning labs is testing a new growth inhibitor for a certain type of bacteria. the bacteria naturally grows exponentially each hour at a rate of 6.2%. the researchers know that the inhibitor will make the growth rate of the bacteria less than or equal to its natural growth rate. the sample currently contains 100 bacteria.the container holding the sample can hold only 300 bacteria, after which the sample will no longer grow. however, the researchers are increasing the size of the container at a constant rate allowing the container to hold 100 more bacteria each hour. they would like to determine the possible number of bacteria in the container over time.create a system of inequalities to model the situation above, and use it to determine how many of the solutions are viable.
Answers: 1
Mathematics, 21.06.2019 17:00
Can someone me i’m confused. will give brainliest and a whole bunch of points
Answers: 2
Mathematics, 21.06.2019 17:50
(01.02 lc) angle abc has point e on ray ba and point d on ray bc. points e and d are equidistant from point b. to bisect angle abc, which of the following needs to be identified for the construction? the distance between points e and d the point in the angle that is equidistant from points e and d the endpoint of rays ba and bc the point outside of the angle that is equidistant from points e and d
Answers: 1
Mathematics, 21.06.2019 18:00
Arecipe calls for 32 fluid ounces of heavy cream.how many 1 pint containers of heavy cream are needed to make the recipe?
Answers: 2
A pool supply company sells 50-pound buckets of chlorine tablets. A customer believes that the compa...
Geography, 25.11.2021 22:30
Biology, 25.11.2021 22:30
English, 25.11.2021 22:30
Physics, 25.11.2021 22:30
Mathematics, 25.11.2021 22:30
Social Studies, 25.11.2021 22:40
Mathematics, 25.11.2021 22:40
English, 25.11.2021 22:40
Social Studies, 25.11.2021 22:40
Mathematics, 25.11.2021 22:40
Computers and Technology, 25.11.2021 22:40
SAT, 25.11.2021 22:40
Mathematics, 25.11.2021 22:40
Physics, 25.11.2021 22:40