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Complete the following four hypotheses, using α = 0.05 for each
1. Mean sales per week exceed 42.5 per salesperson
2. Proportion receiving online training is less than 55%
3 Mean calls made among those with no training is at least 145
4. Mean time per call is 14.7 minutes
Use either the p-value or the critical values to draw conclusions. Be sure to explain your conclusion and interpret that to the claim in simple terms
Compute 99% confidence intervals for the variables used in each hypothesis test, and interpret these intervals.
a certain researcher thinks that the proportion of women who say that the earth is getting warmer is greater than the
Describe the sample space O and probability measure P used to model this experiment. What is the probability that out of the five picked numbers exactly three
the marketing department of a major cereal manufacturer is doing a national taste test on flake cereals. there are five
1.a study was conducted to explore the relation between alcohol consumption and hypertension. 7400 nurses were surveyed
the growth of children from early childhood through adolescence generally follows a linear pattern. data on the heights
Does this provide evidence that the company has reached its goal? Using your confidence interval, test an appropriate hypothesis and state your conclusion.
If you are using exponential smoothing for forecasting an annual time series of revenues, what is your forecast for the next year if the smoothed value for this year is $32.4 million?
At α =0.05, can it be concluded that families who live in cities have higher income than those who live in rural areas? Utilize P-value method.
A random sample of 8 observations from another population revealed a sample mean of 26 and a sample standard deviation of 5. At the .05 significance level, is there a difference between the population means?
There are strengths and weaknesses associated with statistical testing. Why is statistical testing important in research?
What is the probability that at least one left-handed student in this class is forced to use a seat designed for a right-hander?
the probability that a motor vehicle entering the luray caverns has canadian license plates is 0.35 the probability
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