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A television station claims that its Monday night movie regularly has 35 percent of the total viewing audience. If this claim is correct, what is the approximate probability that among 100 viewers reached by phone on a Monday night, fewer that 25 were watching the movie? Use the normal distribution to approximate
the total blood cholesterol concentrations in mgdl are shown below for a random sample of six people. in the table
Assistant dean use a sample of application to determine whether the mean examination score for freshman application has changed. State the hypothesses.
Iit is known that signal change in this brain area is normally distributed with mean of 35 and standard deviation of 10. By using .01 level, what must researcher conclude?
the purpose of an automobile timing belt is to provide a connection between the camshaft and the crankshaft. this
In a poll of 1049 adults, it was found that 21% smoked cigarettes in teh past week. Use a 0.05 significance level to test the claim that less than 25% of adults have smoked within the past week.
Using the .05 level, do the results support the researcher's theory? (a) Use the steps of hypothesis testing, (b) sketch the distributions involved.
1. determine if this is an example of probability or statistics the average cost of groceries has risen by 4.2 in the
1. Chebyshev's vs. the empirical theorem/rule.
Four young children were monitored closely over a period of several weeks to measure how much they watched violent television programs and their amount of violent behavior toward their playmates.
Given same values n=20, p=0.6, and x=17, calculate probability of x successes in n independent trails of experiment.
Determine the average and the variation for Brand 1 price, sales market share, and total revenue, using the weekly market survey data (descriptive statistics).
Determine 95% confidence interval evaluate for average number of years served by all Supreme Court justices?
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