Calculus and Above

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A magazine claims that the mean amount spent by a customer
A magazine claims that the mean amount spent by a customer at Burger Stop is greater than the mean amount spent by a customer at Fry World. The results for samples of customer transactions for the two… read more
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You are performing research into the current physiological
You are performing research into the current physiological measurements of men and women. At your request, a medical research center sends you the weights, in pounds, of a group of 40 randomly selecte… read more
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Assume that the data has a normal distribution and the
Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. Alpha = 0.05 for a two-tailed test … read more
GLENN GILONGOS
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1) One concern in the evaluation of research results is that
1) One concern in the evaluation of research results is that the subjects in one treatment condition may be substantially different (older, smarter, and so on) than the subjects in another condition. … read more
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I have two more sets of statistics questions and a paper due
I have two more sets of statistics questions and a paper due this week. I would like to ask for your assistance and I need to know how much to write the paper? Thanks.… read more
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I need help with answers multiple choice questions in
I need help with answers for 21 multiple choice questions in Statistics. How much will it cost for these 21 questions and how quickly can they be answered?… read more
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1)How many tissues should a package of tissues contain?
1)How many tissues should a package of tissues contain? Researchers have determined that a person uses an average of 62 tissues during a cold. Suppose a random sample of 10,000 people yielded the foll… read more
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This is my Mid-term, and I have to get it finished by
Hello, This is my Mid-term, and I have to get it finished by 2am, are you available? if so, I have copied and pasted it below :). 1. A ________ displays the minimum, first quartile, median, third quar… read more
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A random sample of 20 young adult men (13-19 years old) was
A random sample of 20 young adult men (13-19 years old) was sampled. Each person was asked how many minutes of sports they watched on television daily. The responses are listed below. It is known that… read more
Sandhya_sharma
Master's Degree
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One sample has n = 17 with SS = 1646, and a second sample has
One sample has n = 17 with SS = 1646, and a second sample has n = 17 with SS = 1710. (a) Find the pooled variance for the two samples. (Use/round to 2 decimal places.) Pooled variance = (b)Compute the… read more
Stevewh
Bachelor's Degree
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1. Some students that attend college students work full or
1. Some students that attend college students work full or part time. How much did your working college friends each earn last month? Listed below is the amount earned last month by each student in a … read more
Chirag
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1. For which of the following situations would a repeated-measures
1. For which of the following situations would a repeated-measures research design be appropriate? a. comparing mathematical skills for girls versus boys at age 10 b. comparing pain tolerance with and… read more
Chirag
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I need help with an intro to statistics quiz. It is 20 questions
I need help with an intro to statistics quiz. It is 20 questions multiple choice. It has to be done today and I have 2 hours.… read more
Stevewh
Bachelor's Degree
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What is estimated standard error for the independent-measures
What is estimated standard error for the independent-measures t statistic for the following two samples? Sample 1: n = 4 with SS = 100 Sample 2: n = 8 with SS = 140… read more
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2)Which of the following hypothesis tests use a z test statistic? A)
2)Which of the following hypothesis tests use a z test statistic? A) Matched Pairs B) Single Proportion C) Two Proportions D) Goodness-of-Fit E) Single Mean: σ Known F) Independence G) Two Variances H… read more
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Interested in social experiments, you want to estimate the
Interested in social experiments, you want to estimate the percentage of US adults willing to sing karaoke in front of strangers. You want to be within 3 percentage points of the true proportion measu… read more
dhouse1940
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In general, what characteristics of the data (difference
In general, what characteristics of the data (difference scores) are most likely to produce a significant t statistic for the repeated-measures hypothesis test… read more
Chirag
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1.In a study of the sleep inducing effect of 5 medications
1.In a study of the sleep inducing effect of 5 medications A,B,C,D, E a physician administered a standard dose of each to 6 different subjects, 30 in all. He then measured how much time elapsed before… read more
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