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INSTANT ANSWER

Graph the function. Label all asymptotes. List domain, $ x $ - and y-intercepts, and possible "holes." \[ \frac{x^{2}+3 x}{2 x^{3}-5 x^{2}-3 x} \]

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Rashmi Sinha

Numerade educator

A university wants to implement a support course model to help college algebra students do better in their classes. The university will try the model on a class of 35 students to determine how well it works. The average grade of the students with the support course is 71% with a standard deviation of 20%. The university compares these students to the the other 180 college algebra students with no support course. The average grade of the college algebra students with no support course is 69% with a standard deviation of 18%. College algebra grades are normally distributed. At the 5% significance level determine if the average grade with support is greater than the courses that do not have a support course. Use the support course class as population 1. Give the rejection region.

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Robin Corrigan

Numerade educator

Calculate the following probability for the standard normal distribution P (-1 ≤ Z ≤ 1) (round to the hundredths).

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Qudsiya Anis

Numerade educator

The average salary of a civil engineer is $75,000 with a standard deviation of $10,000. Find the salary ranges for unusual salaries.

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T. L.

Numerade educator

A an electric battery for a new electric vehicle has a range that is normally distributed with an average of 400 miles and a standard deviation of 20 miles. What percent of batteries will have a range between 380 miles and 420 miles?

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Dominador Tan

Numerade educator

A company is designing a new electric to compete with a competitor. The company wants their average battery to be better than the car out. The company does not want to spend too much on the initial process so they use only 37 cars. The average battery range of the 37 cars is 401 miles with a standard deviation of 50 miles. Since the other car is already in production, there is much more data on the battery range. The average battery range of 100 of the competitor's car is 400 miles with a standard deviation of 8 miles. The battery range is normally distributed. At the 5% significance, determine if the average battery range of the new vehicle is better than the competitor. Take the new vehicle as population 1. Give the hypothesis.

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Qudsiya Anis

Numerade educator

A new diet is developed to help people lose weight. 50 people tried the diet and had an average weight loss of 8 pounds over 30 days with a standard deviation of 2 pounds. A control group of 100 people tried a standard diet of fruits and vegetables also had an average weight loss of 9 pounds with a standard deviation of 1.2 pounds. Using a 5% significance determine if the new diet is better than eating fruits and vegetables. Take as population 1 the group on the new diet. Give the rejection region

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Qudsiya Anis

Numerade educator

A survey was administered to determine the proportion of workers who reject relocation offers to be an administrator for family considerations. In the survey, 423 people out of 672 rejected relocation offers due to family considerations. Use this information to construct a 95% confidence interval for the proportion of the population that will reject relocation offers due to family considerations.

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RESUBMIT QUESTION

Which interval would be preferred in the previous two problems?

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Qudsiya Anis

Numerade educator

Which of the following intervals on average weight loss over a month (in pounds) for a new diet is a 90% interval and which is a 99% interval? (8, 10) (6, 11)

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Stacy W.