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A sample of workers found that 120 out of 200 preferred flexi-time scheduling over work at home options. In the past management has found 70% of workers preferred the flex option.
a) Do a test to see if workers attitudes on this matter have changed using a 90% alpha.
b) Explain to management what your findings are and what this suggests about future decisions vs work options.
How much would ING be willing to pay if the General Counsel could arrange for an absolutely reliable mock trial?
Assume that the length X in minutes of a regular season NBA game is normally Distributed with X~N (µ X , σ 2 X );
Standard deviations for first- and second-time and confidence interval
A research report summarizes the results of the hypothesis test by stating,"z = 2.13, p
To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments.
Is there evidence of a significant difference in the proportion who get their news primarily from newspapers between those 36 to 50 years old and those above 50 years old? (use α = 0.05)
Calculate the mean absolute deviation based on the 2-day moving average. You can have a forecast and an actual temperature.
Find the critical t-value that corresponds to 90% confidence. Assume 90 degrees of freedom.
Create a 95% confidence interval for mean cost of repairs. Interpret this interval.
On a particular day during the most recent golf tournament, the organizer placed the whole (pin) in 0 back left corner of the green. 64 golfers played the hole with the new placement on that day. Find out the probability of the sample average numb..
We wish to create this mean value interval for selling price with 95% confidence level. Find out the best point estimate (average) for selling price. Critical t-value(s) associated with 95% confidence level.
To demonstrate the process is in control or out of control utilizing p-chart. A company which produces nails has retained you as a consultant.
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