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Please explain every step to make the sum understandable.
It has been hypothesized that the distribution of seasonal colds in Canada is as follows:
Season Percentage
Fall 35%
Winter 25%
Spring 30%
Summer 10%
A random sample of 200 Canadian citizens provided the following results:
Season Observed Frequency
Fall 80
Winter 40
Spring 70
Summer 10
Write down the null and alternate hypotheses.Do the observed data contradict the hypothesis? Formulate and test the appropriate hypotheses at the 5% level of significance. Use the critical value approach.
A researcher is asked to determine whether or not a productivity objective (in dollars) of better than $75,000 per employee is possible. A productivity test is done involving 20 employees. What conclusion would you reach? The sales results are as fol..
An insurance contract, based on the failure time T, pays 1 unit at the moment of failure provided this occurs within 5 years. Find the probability that the present value of the benefits is strictly positive, but less than or equal to e-0.3.
the waiting time for an incoming call at the front desk of a sales store has an exponential distribution. during
Calculate the mean, median, range, and standard deviation for the Body Fat Versus Weight data set. Report your findings, and interpret the meanings of each measurement.
a pair of fair six-sided dice are tossed independently of each other.a list the sample space of this experiment.b
Describe in straight-forward easy to understand language two safety issues that arise with nuclear fission AND two safety issues that arise with nuclear fusion AND what kinds of conditions are needed to start these reactions.
Normal distribution is the most important type of distribution in the real world and applies to many different areas. For example--the IQ test is normally distributes, Can you find the characteristics of the IQ test?
Is the hot-air balloon significantly shorter than light rail? How can you tell? What do you tell university officials?
Calculate the test statistic (z-score) for the sample. What decision should be made about the null hypothesis, and what decision should be made about the effect of the program.
A certain state lottery awards 418 prizes; 28-$200 prizes, 120-$25 prizes and 270-$20 prizes, for every 10,000 tickets sold.
A doctor believes that the standard deviation of systolic blood pressure is 450. A random sample of 24 patients found a standard deviation of 520. Assume the variable is normally distributed and = 0.01. What are the critical values?
post an analysis of how hypothesis testing and the use of confidence intervals are the same. then analyze how these are
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