Pre-Calculus

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We want to conduct a hypothesis test of the claim that for
We want to conduct a hypothesis test of the claim that for middle-aged adults the population mean of their cholesterol levels is less than 194.9. We choose a random sample of such levels. The sample h… read more
rajeevanpillai
Master's Degree
687 satisfied customers
2 questions Suppose a university advertises that its average
for Scott, 2 questionsSuppose a university advertises that its average class size is 31 or less. A student organization is concerned that budget cuts have led to increased class sizes and would like t… read more
Scott
Master's Degree
1,872 satisfied customers
We want to conduct a hypothesis test of the claim that the
Second opinion] We want to conduct a hypothesis test of the claim that the population mean reading speed of second graders is different from 29.6 words per minute. So, we choose a random sample of stu… read more
Neo
13,881 satisfied customers
We want to conduct a hypothesis test of the claim that the
We want to conduct a hypothesis test of the claim that the population mean reading speed of second graders is different from 28.6 words per minute. So, we choose a random sample of students' reading s… read more
rajeevanpillai
Master's Degree
687 satisfied customers
2 questions A sporting goods store believes the average age
2 questions A sporting goods store believes the average age of its customers is 35 or less. A random sample of 47 customers was​ surveyed, and the average customer age was found to be 37.5 years. Assu… read more
Scott
Master's Degree
1,872 satisfied customers
The ages of a group of 129 randomly selected adult females
The ages of a group of 129 randomly selected adult females have a standard deviation 18.2 Assume that the ages of female statistics students have less variation than ages of females in the general​ po… read more
Scott
Master's Degree
1,872 satisfied customers
Approximately 60% of college students in the US were able to
Approximately 60% of college students in the US were able to finish their batchelors degree in 6 years. Use this population proportion to create a sampling distribution with sample size 10 with stat k… read more
R.R. Jha
Bachelor's Degree
6,909 satisfied customers
A survey of 30 adults found that the mean age of a persons
A survey of 30 adults found that the mean age of a persons primary vehicle is 5.6 years. Assuming normal distribution and the standard deviation of the population is 0.8 years find the 99% confidence … read more
Kimberley Wright
Masters
284 satisfied customers
An insurance company claims the average car on the road is
An insurance company claims the average car on the road is less than 6 years old. Based on a random sample of 15 cars, the mean age is 5.8 years with a standard deviation of 1.1 years. Does the sample… read more
akch2002
Master's Degree
3,501 satisfied customers
Some / on this list is on my exam i need help and answers
hi some / on this list is on my exam i need help and answers asap … read more
GLENN GILONGOS
Master of Mathematics
637 satisfied customers
I am looking at a set of questions you answered 9 months
Hi Ryan, I am looking at a set of questions you answered 9 months ago. How can I get those answers. ***** ***** … read more
Ryan
Bachelor's Degree
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Question 1 Assume that the weight loss first month
Question 1 Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform dis… read more
Ryan
Bachelor's Degree
4,665 satisfied customers
I see where you have already answered a homework assignment the same as this. Please let me know what the charge will be to get the answers. Questions 1 to 20: Select the best answer to each question.… read more
R.R. Jha
Bachelor's Degree
6,909 satisfied customers
1. In a sample with mean x = 12 and standard deviation s =
1. In a sample with mean x = 12 and standard deviation s = 3.5, a data point at 16.8 would have what sample z-score? A. 4.8 B. We can't know the answer without knowing the population mean μ and standa… read more
Osbert12
Master's Degree
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FOR SCOTT ONLY, Scott think you can have this for me today?
FOR SCOTT ONLY, Scott think you can have this for me today? Seems pretty simple just matching things up...Also are you free tonight to do the math lab stuff for this week same time as usual like 6:15 … read more
Scott
Master's Degree
1,872 satisfied customers
Hi Math-John! I have another set of problems for you, this
Hi Math-John! I have another set of problems for you, this is longer than the last. Some of the answers are essay but clearly I DO NOT want you to write my essays! Instead I just want to know what mat… read more
Math-John
30 satisfied customers
1. For a particular sample of 80 scores on a psychology exam,
1. For a particular sample of 80 scores on a psychology exam, the following results were obtained. First quartile = 65 Third quartile = 98 Standard deviation = 8 Range = 56 Mean = 83 Median = 81 Mode … read more
Ray Atkinson
Bachelor's Degree
1,687 satisfied customers
What is the mean annual snowfall during 49 randomly picked years?
Solve the problem. The amount of snowfall falling in a certain mountain range is normally distributed with a mean of 94 inches, and a standard deviation of 14 inches. What is the probability that the … read more
Chirag
Master's Degree
10,329 satisfied customers
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