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Need help on a homework JA: The Math Tutor can help you get
need help on a homework JA: The Math Tutor can help you get an A on your homework or ace your next test. Tell me more about what you need help with so we can help you best. Customer: statistic JA: Any… read more
Ryan
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1). Assume that a random sample is used to estimate a population
1). Assume that a random sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level. 98% confidence, the sample size… read more
Stevewh
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Use the confidence level and sample data to find a confidence
Use the confidence level and sample data to find a confidence interval for estimating the population μ. Round your answer to the same number of decimal places as the sample mean. 3) 37 packages are ra… read more
Stevewh
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3. Find the margin of error for the given values of c, s, and
3. Find the margin of error for the given values of c, s, and n. c=0.95, s=3.1, n=49 E= ? ( Round to three decimal places as needed.) 4. You are given the sample mean and the sample standard deviation… read more
SusanAthena
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8. The life span of a battery is normally distributed, with
8. The life span of a battery is normally distributed, with a mean of 2300 hours and a standard deviation of 50 hours. What percent of batteries have a life span that is more than 2365 hours? What per… read more
Ryan
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1)Assume that you have a sample of n1(n sub 1) 9, with the
1)Assume that you have a sample of n1(n sub 1)=9, with the sample mean X1= 45 and a sample standard deviation of S1=7 and you have an independent sample of n2=15 from another population with a sample … read more
dhouse1940
Retired
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1)Assume that you have a sample of n1(n sub 1) 9, with the
1)Assume that you have a sample of n1(n sub 1)=9, with the sample mean X1= 45 and a sample standard deviation of S1=7 and you have an independent sample of n2=15 from another population with a sample … read more
rajeevanpillai
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1)Assume that you have a sample of n1(n sub 1) 9, with the
1)Assume that you have a sample of n1(n sub 1)=9, with the sample mean X1= 43 and a sample standard deviation of S1=4 and you have an independent sample of n2=15 from another population with a sample … read more
rajeevanpillai
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Question 1 . survey was conducted to measure the height of
Question 1 . survey was conducted to measure the height of men. In the survey, respondents were grouped by age. In the 20-29 age group, the heights were normally distributed, with a mean of 67.1 inche… read more
Stevewh
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1. You work for a consumer advocate agency and want to find
1. You work for a consumer advocate agency and want to find the mean repair cost of a washing machine. As part of your study, you randomly select 40 repair costs and find the mean to be \$188.00. The s… read more
Chirag
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1) Find the critical value Zc necessary to form a confidence
1) Find the critical value Zc necessary to form a confidence interval at the level shown. C=.95 (round to two places) 2) Find the margin of error. c= .95, s=3.6, n=100 (round to three decimal places) … read more
abozer
Bachelor's Degree
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Problem 1) Use the given confidence level and sample data to
Problem 1) Use the given confidence level and sample data to find (a) the margin of error and (b) the confidence interval for the population mean u. Assume that the population has a normal distributio… read more
muvee
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1. Construct a scatter plot using excel for the given data.
1. Construct a scatter plot using excel for the given data. Determine whether there is a positive linear correlation, negative linear correlation, or no linear correlation. Complete the table and find… read more
psolvers
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Hi please help!! thank you. 1-In a random sample of 26 people
Hi please help!! thank you. 1-In a random sample of 26 people , the mean number of books they null read in the past year was 13.67 books and standard deviation was 16.60 bboks. Assume the variable is … read more
Stevewh
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Construct the 95% and 99% confidence intervals for the population
Construct the 95% and 99% confidence intervals for the population proportion p using the sample statistics below. Which interval is wider? If convenient, use technology to construct the confidence int… read more
Elizabeth
Master's Degree
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1.Construct the 95% and 99% confidence intervals for the population
1.Construct the 95% and 99% confidence intervals for the population proportion p using the sample statistics below. Which interval is wider? If convenient, use technology to construct confidence inter… read more
abozer
Bachelor's Degree
6,158 satisfied customers
5. The test scores for 12 randomly selected high school seniors
5. The test scores for 12 randomly selected high school seniors are shown below 1426 1221 984 692 725 831 722 748 547 624 1449 945 Assume the population is normally distributed. Find the sample mean x… read more
abozer
Bachelor's Degree
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7. In a random sample of 56 bolts, the mean length was 2.36
7. In a random sample of 56 bolts, the mean length was 2.36 inches and the standard deviation was 0.07 inch. use a normal distribution or a t-distribution to construct a 99% confidence interval for th… read more
abozer
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