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Consider babies born in the "normal" range of 37 - 43 weeks gestational age. Extensive data supports the assumption that for such babies born in the United States, birth weight is normally distributed with mean = 3432 grams and standard deviation = 482 grams.
What is the probability that the birth weight of a randomly selected baby of this type:
a. is between 3000 and 4000 grams
b. exceeds 4000 grams
c. is either less than 200 grams or greater than 5000 grams
d. is no more than 3432 grams
Use the normal distribution to approximate the following probability: According to the most recent Davenport student profile, 47% of students have children under 17 living at home with them.
Find the probability that 665 or fewer college students in the sample send and receive text messages with their phones? Is this result unusual?
The number of items rejected daily by the manufacturer because of defects for last 30 days are:
Use a scatter plot to determine the relationship between the x values and the y values.
Use the above information to calculate the number of watches (units) and the sales dollars we need in order for our flea market business to break even for the day.
You just saw an ad on television that states the majority of the population would vote to make smoking illegal. The poll that is referenced shows 53% of those asked supported making smoking illegal.
A market researcher wants to find the 99% Confidence Interval for the average number of hours people spend online each day.
Find a 90% confidence interval for the mean amount left by all groups.
Explain the ANOVA output table values:
A survey of 600 non-fatal accidents showed that 111 involved the use of a cell phone. Find a point estimate for p, the population proportion of accidents that involved the use of a cell phone.
Create the table for frequency distribution that has 16 class intervals of width 1 inch. Utilize 61.5 inches as lower limit of first interval and 62.5 as upper limit.
Must the company replace old truck? If so which of new trunks must they use? Describe in detail.
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