1. The manager at Bell's Gym wants to know the proportion of members who use the Cardio Machines. A sample of 260 members showed that 40 of them use cardio machines. Calculate a 97% confidence interval for the proportion of members who use the cardio machines. 2. A farmer grows a new variety of potatoes. A random sample of 80 roots of the new variety is harvested and weighed. The mean weight was found to be 3.20 per root, and the standard deviation of 0.50 kg per root. Based on his knowledge of the land, the farmer expected 3.30kg per root You are required to test at the 5% level whether the sample provides sufficient evidence that the crop is NOT what the farmer expected. a) State, in symbols, appropriate null and alternative hypothesis for the test. b) Determine the critical value(s) for the test. c) Calculate the value of the test statistic. d) State your Decision and Conclusion, giving a reason for your answer.

Q: Using the Fα​-notation, identify the​ F-value having area 0.975 to its left.

A:

Q: Your pump empties t together with your pu pump to empty the p

A: Given that, Your pump emptites water from swimming pool in 6 hours. That means your pump empties the…

Q: to dt ttz te use seperable eqution to solve

A: Differential Equation

Q: Prove: if z = (V3)/2 + i/2, and %3D then z = i z" = 1 %3D

A:

Q: Find the t-value such that the area left of the t-value is 0.01 with 8 degrees of freedom

A: Given information- We have given the area left of the t-value = 0.01 Degree of freedom, df = 8 We…

Q: How is the antiderivative of a function related to the function?

A: Given: antiderivative of a function related to the function.

Q: c) The lack of rock noise may be equally worrying, in that it may mean that the big one' is coming.…

A: Here given, After mining operations, small-scale displacements take place that result in the release…

Q: box. The dimensions of a closed rectangular box are measured as 90 centimeters, 50 centimeters, and…

A: Given that :The dimensions of a closed rectangular box are measured as 90 centimeters, 50…

Q: Integrate: dx

A: By substitution method, integration of function is solved step by step .

Q: When is integrating using the tabular method useful?

A: When is integrating using the tabular method useful?

Q: A rectangle with a length of 9 feet and a width of 8 feet is being dilated by a scale factor of…

A: The answer provided below has been developed in a clear step by step manner.

Q: Cak16 area Find the sucface f revolution for enx 23 for Isx<2 about the y-axis a be

A: To find the surface area of revolution of the below curve from x = 1 to x = 2 about the y-axis.…