Find the minimum sample size
McDonalds Waiting Times. You want to estimate SD for the population of waiting times at McDonald's drive up windows. You want to be 95% confident that the sample SD is within 20% of SD. Find the minimum sample size. Is this sample size practical?
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Air enters a compressor operating at steady state at 1.05 bar, 300 K, with a volumetric flow rate of 12 m3/min and exits at 12 bar, 400 K. Heat transfer occurs at a rate of 2 kW from the compressor to its surroundings.
As part of a study of grade inflation, you want to estimate the mean GPA of all current college student in the U.S. All GPAS are to be standardized for a scale between 0 and 4.
Consider an ocean thermal energy conversion power plant in Hawaii designed to operate between temperature limits of 90°F (ocean surface). Calculate thermal efficiency (%) of the power plant.
The number of vacancies in some hypothetical metal increases by a factor of 4 when the temperature is increased from 1010 K to 1160 K.
A stone is shot from the edge of a cliff 125 m above ground level with an initial speed of 65 m/s at an angle of 37 degree below the horizontal. (a) Determine the the displacement along x direction
What are the hoop and axial stresses , when the cylinder carries an internal pressure of 10 MPa? How much does the radius of the cylinder expand due to the internal pressure?
The salespeople at Quality Motor Bikes sell up to 5 bikes a month. The probability distribution is as follows in the table below. What is the expected number of bikes sold during a month?
A charged material causes the deflection of a positively charged electroscope to increase. Does the charged material have an excess or deficiency of electrons? Explain.
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When arousal levels become high due to stress or intense demands, how do individuals use personality-based strategies to stay motivate"
Officers experience many realities of police work when they enter the career. These realities can be shocking and difficult for the officer and their family.
What have you observed in practice so far that has informed your understanding of the benefits and challenges of psychotherapy?
Explain how biases in administering your selected tool can be avoided when using the cognitive ability assessment tool test as an HR manager
Overall, Arun's challenge highlights the importance of prioritizing ethical responsibility over convenience or organizational demands.
For scientific inquiry to be needed, we must show that society does not already know what the study claims to find out.
This is another response: The increased reliance on daycare and preschool in single-parent and dual-income households has important implications