Math Homework

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The mean salary offered to students who are graduating from
The mean salary offered to students who are graduating from Coastal State University this year is \$ 24,260, with a standard deviation of \$ 3643. A random sample of 80Coastal State students graduating … read more
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1. A college professor claims that the entering class this
1. A college professor claims that the entering class this year appears to be smarter than entering classes from previous years. He tests a random sample of 16 of this year's entering students and fin… read more
rajeevanpillai
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It was claimed recently that more than 65% of high school students
It was claimed recently that more than 65% of high school students in the United States use computers for educational purposes. We wish to examine this claim. We choose a random sample of 220 U.S. hig… read more
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Hi I have 5 math questions - Here is the first question Question
Hi I have 5 math questions - Here is the first question Question #1 / 5 A college professor claims that the entering class this year appears to be smarter than entering classes from previous years. He… read more
Chirag
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Hypothesis test for a population proportion It was claimed
Hypothesis test for a population proportion It was claimed recently that more than 55% of high school students in the United States use computers for educational purposes. We wish to examine this clai… read more
Chirag
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It was claimed recently that more than of high school students
It was claimed recently that more than of high school students in the United States use computers for educational purposes. We wish to examine this claim. We choose a random sample of U.S. high school… read more
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A recent study at a local college claimed that the proportion,
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 260 students at this college is s… read more
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Cholesterol levels of adult males are approximately normally
Cholesterol levels of adult males are approximately normally distributed with a mean of 224 mg/dL and a listed variance of 506.25. Some researchers claim that the variance of cholesterol levels of adu… read more
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A decade-old study found that the proportion, p, of high school
A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 70%. A researcher decides to test whether or not that percen… read more
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A decade-old study found that the proportion, p, of high school
A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 70%. A researcher decides to test whether or not that percen… read more
Stevewh
Teacher
Bachelor's Degree
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Two popular drugs used for the treatment of depression are
Two popular drugs used for the treatment of depression are Resithan and Exemor. A random sample of 444 depressed individuals is selected and treated with Resithan, and 160 find relief from their depre… read more
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BIG Corporation advertises that its light bulbs have a mean
BIG Corporation advertises that its light bulbs have a mean lifetime, , of at least hours. Suppose that we have reason to doubt this claim and decide to do a statistical test of the claim. We choose a… read more
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It was claimed recently that more than of high school students
It was claimed recently that more than of high school students in the United States use computers for educational purposes. We wish to examine this claim. We choose a random sample of U.S. high school… read more
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Bachelor's Degree
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Hypothesis test for a population proportion A recent study
Hypothesis test for a population proportion A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 20% . If a rando… read more
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Bachelor's Degree
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**For RRJha** Need your help; questions due tonight at 12 00
**For RRJha** Need your help; questions due tonight at 12:00 - no more questions after this. 2. Identify the data set's level of measurement. hair color of women on a high school tennis team (Points: … read more
R.R. Jha
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Question 1 An automobile assembly line operation has a scheduled
Question 1 An automobile assembly line operation has a scheduled mean completion time, , of minutes. The standard deviation of completion times is minutes. It is claimed that, under new management, th… read more
Stevewh
Teacher
Bachelor's Degree
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It was claimed recently that more than of high school students
It was claimed recently that more than of high school students in the United States use computers for educational purposes. We wish to examine this claim. We choose a random sample of U.S. high school… read more
Chirag
Master's Degree
10,329 satisfied customers
A recent study at a local college claimed that the proportion,
A recent study at a local college claimed that the proportion, p of students who commute more than fifteen miles to school is no more than 15%. If a random sample of students at this college is select… read more
abozer
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