Calculus and Above

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5.1 1-3 Question 2, options: P(exactly 57 girls)/P(57 or
5.1 1-3 Question 2, options: P(exactly 57 girls)/P(57 or more girls) Is/is not Equal to/ greater than/ less than… read more
Kofi
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Assume that when adults with smartphones are randomly​
Assume that when adults with smartphones are randomly​ selected, ​42% use them in meetings or classes. If 13 adult smartphone users are randomly​ selected, find the probability that fewer than 5 of th… read more
rajeevanpillai
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The accompanying table describes results from groups of 8
The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Complete parts​ (a) through​ (… read more
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A recent study reported that ​% of the residents of a
A recent study reported that ​% of the residents of a particular community lived in poverty. Suppose a random sample of residents of this community is taken. We wish to determine the probability that … read more
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Seven of the 50 digital video recorders​ (DVRs) in an
Seven of the 50 digital video recorders​ (DVRs) in an inventory are known to be defective. What is the probability that a randomly selected item is​ defective?second part Assume that 2400 births are r… read more
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Assume that different groups of couples use a particular
Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a… read more
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Assume that different groups of couples use a particular
Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a… read more
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Assume that hybridization experiments are conducted with
Assume that hybridization experiments are conducted with peas having the property that for​ offspring, there is a 0.75 probability that a pea has green pods. Assume that the offspring peas are randoml… read more
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When two births are randomly​ selected, the sample space for
When two births are randomly​ selected, the sample space for genders is​ bb, bg,​ gb, and gg. Assume that those four outcomes are equally likely. Construct a table that describes the sampling distribu… read more
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rajeevanpillai
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Find the standard​ deviation, s, of sample data summarized
Find the standard​ deviation, s, of sample data summarized in the frequency distribution table below by using the formula​ below, where x represents the class​ midpoint, f represents the class​ freque… read more
MunishK
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According to a survey in a​ country, 38​% of adults do not
According to a survey in a​ country, 38​% of adults do not own a credit card. Suppose a simple random sample of 600 adults is obtained. Complete parts​ (a) through​ (d) below. ​(a) Describe the sampli… read more
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According to a survey in a​ country, 17​% of adults do not
According to a survey in a​ country, 17​% of adults do not own a credit card. Suppose a simple random sample of 400 adults is obtained. Complete parts​ (a) through​ (d) below.​(a) Describe the sampling distribution of ModifyingAbove p with caret​, the sample proportion of adults who do not own a credit card. Choose the phrase that best describes the shape of the sampling distribution of ModifyingAbove p with caret below. A. Not normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis greater than or equals 10 B. Approximately normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis greater than or equals 10 C. Not normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis less than 10 D. Approximately normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis less than 10 Determine the mean of the sampling distribution of ModifyingAbove p with caret. mu Subscript ModifyingAbove p with caret Baseline equals nothing ​(Round to two decimal places as​ needed.) Determine the standard deviation of the sampling distribution of ModifyingAbove p with caret. sigma Subscript ModifyingAbove p with caretequals nothing ​(Round to three decimal places as​ needed.)​(b) What is the probability that in a random sample of 400 ​adults, more than 21​% do not own a credit​ card? The probability is nothing.​(Round to four decimal places as​ needed.) Interpret this probability. If 100 different random samples of 400 adults were​ obtained, one would expect nothing to result in more than 21​% not owning a credit card.​(Round to the nearest integer as​ needed.)​(c) What is the probability that in a random sample of 400 ​adults, between 16​% and 21​% do not own a credit​ card? The probability is nothing.​(Round to four decimal places as​ needed.) Interpret this probability. If 100 different random samples of 400 adults were​ obtained, one would expect nothing to result in between 16​% and 21​% not owning a credit card.​(Round to the nearest integer as​ needed.)​(d) Would it be unusual for a random sample of 400 adults to result in 64 or fewer who do not own a credit​ card? Why? Select the correct choice below and fill in the answer box to complete your choice.​(Round to four decimal places as​ needed.) A. The result is not unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is greater than​ 5%. B. The result is unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is greater than​ 5%. C. The result is not unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is less than​ 5%. D. The result is unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is less than​ 5%. … read more
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Exit polling is a popular technique used to determine the
Exit polling is a popular technique used to determine the outcome of an election prior to results being tallied. Suppose a referendum to increase funding for education is on the ballot in a large town… read more
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Use normal approximation to estimate the probability of
Use normal approximation to estimate the probability of getting at least 55 girls in 100 births. Assume that boys and girls are equally likely.… read more
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Master's Degree
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A psychologist obtains a random sample of 20 mothers in the
A psychologist obtains a random sample of 20 mothers in the first trimester of their pregnancy. The mothers are asked to play Mozart in the house at least 30 minutes each day until they give birth. Af… read more
GLENN GILONGOS
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Find range, variance & standard deviation for sample data
I have 6 questions and i can only post them after you answer each questions because each question is divided to multiple questions. Listed below are the top 10 annual salaries​ (in millions of​ dollar… read more
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What are hypotheses for the engineer in charge of water rationing?
1) An engineer in charge of water rationing for the U.S. Army wants to determine if the average male soldier spends less time in the shower than the average female soldier. Let μm represent the averag… read more
Stevewh
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(3) An analyst processes one item every 30 minutes, so 16 items
(3) An analyst processes one item every 30 minutes, so 16 items are completed in her first day of work. Her manager checks her work by randomly selecting an hour of the day, then reviewing all the ite… read more
JACUSTOMER-yrynbdjl-
JACUSTOMER-yrynbdjl-
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