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A toothpaste manufacturer wants to establish that their sales have more than 42% of the market. Set up the null and alternative hypotheses for the toothpaste manufacturer. Out of a random sample of 40 toothpaste purchases, 19 are from this manufacturer. Can you conclude the toothpaste manufacturer's claim at α = 0.024? (Use p-value approach.)
a construct a 95 confidence interval for mu1 213872 -- standard deviation 69261 the expected price of real estate in
You are investigating the flight characteristics of different kinds of birds. You collect a sample of 33 European swallows (Hirundo rustica) and measure their air-speed velocity in a borrowed wind tunnel.
the sylvan pharmaceutical company makes tubes of antibacterial cream that are labeled as containing 4 ounces. in
you wish to conduct an anova one wayomnibus in your capstone project. in order to insure you have enough power to
Would the null hypothesis be accepted or rejected in this case?
the weights of newborn baby boys in the population of a country follow a normal distribution with a mean of 105.3
the following data reports the income rate 1000 and average expense 1000 for the large area in the u.sareaincome rate
Supposing that the entire $10,000 can be spent on tires (ignoring other costs), and that the true fraction that will fail is approximately .05, can NHTSA attain its goal while staying within the budget? Describe.
Assume the standard deviation of the distribution is 2.5pounds, what is the probability that the mean of a sample of 55 families is between 17 and 18 pounds.
Find a 95% confidence interval for the mean daily caloric intake. Interpret this interval.
the probability density function of the length of a metal rod is fx 2 for 2.3 lt xgtlt 2.8gta if the specifications for
1.a manufacturer of infant formula is running an experiment using the standard control formula and two new formulas a
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