Calculus and Above

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Two samples are taken with the following numbers of
Two samples are taken with the following numbers of successes and sample sizes r 1 = 29 r 2 = 20 n 1 = 81 n 2 = 59Find a 94% confidence interval, round answers to the nearest thousandth. < p 1 − p … read more
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I need help with statistics. How do i construct a confidence
Assume that we want to construct a confidence interval. Do one of the​ following, as​ appropriate: (a) find the critical value ​, ​(b) find the critical value ​, or​ (c) state that neither the normal distribution nor the t distribution applies. The confidence level is ​%, is not​ known, and the normal quantile plot of the salaries​ (in thousands of​ dollars) of basketball players on a team is as shown.… read more
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I need help with the following statistics question Determine
Hi I need help with the following statistics question Determine the margin of error for the confidence interval for the proportion: <0.53<μ0.772 … read more
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The claim is that the IQ scores of statistics professors are
The claim is that the IQ scores of statistics professors are normally​ distributed, with a mean greater than 127. A sample of 21 professors had a mean IQ score of 128 with a standard deviation of 2. F… read more
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Hey im looking to get some help with my stats homework … read more
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I need to find the sample mean, sample standard deviation,
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I'm having the time of my life (sarcasm) with statistics.
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Is there a way I can send you pics of specified questions? I
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Im having issues with my stat homework. So the question is
ok so the question is find the minimal sample size required so that for a 90% confidence interval, the maximal margin of error is E=0.5 … read more
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What is your favorite color? A large survey of countries,
What is your favorite color? A large survey of countries, including the United States, China, Russia, France, Turkey, Kenya, and others, indicate that most people prefer the color blue. In fact, about… read more
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In the formula for the Confidence Interval for the Mean,
In the formula for the Confidence Interval for the Mean, besides E, what group of symbol(s) represents the Maximum Error of Estimate? … read more
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According to a New York Times / CBS News poll in June 2012,
According to a New York Times / CBS News poll in June 2012, only about 44% of the American public approves of the job the Supreme Court is doing. This poll included responses of 976 adults.Estimate th… read more
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In a survey of 637637 males ages​ 18-64, 392392 say they
In a survey of 637637 males ages​ 18-64, 392392 say they have gone to the dentist in the past year. Construct​ 90% and​ 95% confidence intervals for the population proportion. Interpret the results an… read more
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I need help with test questions..open book. notes test in
I need help with test questions..open book. notes test in statistics … read more
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I was trying to figure out number 2 in the resolved
Hi I was trying to figure out number 2 in the resolved question … read more
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This same question with different numbers, Random and
Random and independent samples of 70 recent prime time airings from each of two major networks have been considered. The first network aired a mean of 109.1 commercials during prime time, with a standard deviation of 5.5 commercials. The second network aired a mean of 110.9 commercials, with a standard deviation of 5.5 commercials. As the sample sizes are quite large, the population standard deviations can be estimated using the sample standard deviations. Construct a 95% confidence interval for , the difference between the mean number of commercials aired during prime time by the first network and the mean number of commercials aired during prime time by the second network. Then complete the table belowwhat is the lower limit of the 95% confidence interval what is the upper limit of the 95% confidence interval … read more
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The 99% confidence intervals and females on height variable
The 99% confidence intervals for males and females on height variable are the following: females (64.85, 69.26) males (67.40, 71.93). Which is wider and why? … read more
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