Calculus and Above

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1. Mrs. recorded the number of pins on the water. There were
1. Mrs. Brown recorded the number of pins on the water. There were __37__ pins in the water and _13__ pins on the soil (non-water points). 2. Use Excel to calculate a sample proportion of points that … 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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A. In a recent year, the Better Business Bureau settled 75%
A. In a recent year, the Better Business Bureau settled 75% of complaints they received. (Source: USA Today, March 2, 2009) You have been hired by the Bureau to investigate complaints this year involv… read more
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A researcher wishes to estimate the percentage of adults who
A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 4 percentage points with 99​% conf… read more
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A 0.1 significance level is used for a hypothesis test of
A 0.1 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender​ selection, the proportion of baby girls is different from 0.5. Assume that samp… read more
Kofi
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A 0.1 significance level is used for a hypothesis test of
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Do you have an excel file to calculate the sample size when
Hello! Do you have an excel file to calculate the sample size when total population, margin or error and confidence interval are provided. Assume p=0.5 for unbiased outcome. Can you please explain the… read more
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To calculate sample size for random sample population, why
To calculate sample size for random sample population, why is population proportion assumed to be 0.5? How is sample size dependent on population proportion anyways?… read more
Sandhya_sharma
Master's Degree
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Im trying to figure out how to plug into stat crunchThe
Im trying to figure out how to plug into stat crunchThe claim is that the IQ scores of statistics professors are normally​ distributed, with a mean less than 131. A sample of 18 professors had a mean … read more
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Master's Degree
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A 0.05 significance level is used for a hypothesis test of
A 0.05 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender​ selection, the proportion of baby girls is greater than 0.5. Assume that sampl… read more
GLENN GILONGOS
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Suppose the U.S. president wants an estimate of the
Suppose the U.S. president wants an estimate of the proportion of the population who support his current policy toward revisions in the health care system. The president wants the estimate to be withi… read more
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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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Refer to the sample data for pre employment drug screening
1. Refer to the sample data for pre employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suff… read more
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Must Show work need it now 7 questions 1. Identify H0 and
Must Show work need it now 7 questions 1. Identify H0 and H1 the proportion of people aged 18-25 who currently use illicit drugs is equal to 20% 2. Finding Test statistic z, the claim is more than 75%… read more
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Explain a unique-real situation where probabilities exist.
Explain a unique-real situation where probabilities exist. Point out all of the outcomes, and the probabilities associated with each outcome.… read more
SusanAthena
Master's Degree
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Below are 8 questions that I need answers for. I do not need
Below are 8 questions that I need answers for. I do not need to see the work. I only need to have the correct answer. I have also provided the possible correct answers. 1. the mistake of rejecting the… read more
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Determine the sample size necessary to estimate a population
Determine the sample size necessary to estimate a population proportion to within .03 with 90% confidence assuming you have no knowledge of the approximate value of the sample proportion.… read more
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Post-Doctoral Degree
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Suppose the U.S. President wants an estimate of the proportion
Suppose the U.S. President wants an estimate of the proportion of the population who support his current policy toward revisions in the Social Security system. The president wants the estimate to be w… read more
Sandhya_sharma
Master's Degree
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