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Blood type AB is found in only 3% of the population. If 320 people are chosen at random, find the probability of the following. (Round your answers to four decimal places.)
a) 5 or more will have this blood type.
b) between 5 and 10 will have this blood type.
One use of the Chi-square goodness of fit test is to determine if specified multinominal probabilities in the null hypothesis is correct.
Determine fraction of employees cost between $1,500 and $2,000 per year?
Construct a 95% confidence interval for the proportion and calculate the P value for the given test.
Compute the 95% confidence interval around the mean of each of the three groups and plot the confidence interval in the space provided above.
Draw suitable distribution curve indicating position of the TS and CV.
At a large department store, the amount a shopper spent and the shopper's gender (male or female) were recorded. To determine if gender is useful in explaining the amount of money a shopper spends at the store we could
Do the data from this sample provide evidence for a significant increase in REM activity during exams? Use a one-tailed test with _ = .01. B.) Compute Cohen's d to estimate the size of the effect.
Using the following number of flirtations actions in the 4 hour period, test the "null hypothesis'
Does the normal distribution yield a good approximation of the actual results?
If one item is chosen at random, determine these probabilities. It is a TV
Find the probability that the number of who consider themselves basketball fans is :
Compute z values for each and comment on your findings.
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