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A researcher wants to know if the amount of calories in a meal from five different restaurants is different. What type of statistic should be used?
Would you agree with this claim if the random sample showed an average of 23,500 km and a standard deviation of 3,900 km? Use 0.01 level of significance.
Use the definitional formula given below to find the derivative of the function.
Find the expected value (don't forget the coin toss). In order to make a little profit in the "long run", what should your minimum charge be for the privilege of playing this game?
1.i plan an experiment to test the latest conflicting diet programs. the factor for diet will involve three different
Estimate the factor eeffects. Construct a normal probability plot of these eects. Which eeffects appear large?
the study found 87 per cent of 1500 australians surveyed would support colour-coding on packaged food to indicate
hypothesis testing we wish to test the claim that the mean body mass index bmi of men is equal to the mean bmi of
Why is statistical significance not necessarily of practical important difference to a business decision? Provide an example and explain.
Suppose 10 balls, numbered 1-10, are to be distributed randomly into 10 boxes. a) What is the probability all 10 balls are placed into one box? b) What is the probability that no boxes are empty?
consider throwing 2 usual dice. in each play we observe the number of dots that stay on top sum the returned result
The statistics showed that students studied an average of 20 hours per week with a standard deviation of 10 hours. What is the probability that a sample mean would exceed 20 hours per week?
Given a normal distribution of data, we know from the Empirical Rule that in between 2 standard deviations from the mean
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