Point estimate for the population mean

Assignment Help Basic Statistics
Reference no: EM1318375

A podiatrist recorded the recovery time, in days, for 38 patients. He was trying out a new procedure and hoped the result would be less recovery time on average. The mean recovery using the previous procedure was 6.5 days. The recorded times were:

8

7

8

6

9

4

5

3

7

8

10

7

7

6

4

10

3

6

8

2

5

5

4

5

3

8

7

4

6

3

7

12

4

3

6

6

9

4

Note that Σx = 229 and Σx2 = 1581.

(a) What is a point estimate for the population mean µ?

(b) Find a 90% confidence interval for µ.

(c) What is the maximum error of estimate for µ?

Reference no: EM1318375

Questions Cloud

Solve the system of equation by matrix method : Solve the system of equation by matrix method - Use augmented matrices to solve the following 2 x 2 systems of equations.
Estimate the vertex and all intercepts of the parabola : Estimate the vertex and all intercepts of the parabola
Create both absolute and relative frequency tables : Produce a printout of the frequency tables, showing the total of both frequencies.
High level overview of methods-options and recommendations : Prepare a high-level overview of methods, options, and recommendations for the types of methods and tools that you believe will be best suited to the situation.
Point estimate for the population mean : What is a point estimate for the population mean µ?
Application of matrices in real word problems : Application of matrices in real word problems -Five neighborhoods ( NB ) all want to raise money for a playground for their kids.
Implenting a code : Write down a fragment of code which reads a line of text (using getline) from standard input containing of a last name followed by the first name
Computing t-test critical value if variances are equal : How many degrees of freedom must researcher use in her t-test critical value supposing that variances are equal?
Create histograms for both frequencies : Evaluate your histograms for any outliers in your data. Based on your evaluation of outliers, you may trim no more than 1% of the data contained in the data set. This must be done symmetrically (i.e., trimming no more than 0.5% off the top and 0.5..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Difference in means between two populations

Any analysis required to check the required conditions (note that if you find that you cannot meet the required conditions for the test you expected to do, you must use the appropriate non-parametric test)

  Computing probability to receive email during same period

What is the probability she received 5 or more email during the same period?

  Soft drinks a vending machine automatically pours

Soft Drinks a vending machine automatically pours soft drinks into cups. As the amount of soft drink dispensed into a cup is normally distributed

  Quick rule to verified confidence interval for proportion

Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.

  Estimating the sample size based on normal distribution

Karefree State University has an enrollment of 18,000. Researchers took a sample of 900 and found 477 students wanted a Field Hockey team. Construct the 95% and 99% Interval estimates for the population proportion.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Correlation and testing the significance of correlation

A Correlation matrix (correlation, coefficients and probability level under the hypothesis rho = 0) for a company's sales force (age, years of service, and current sales) is given below. Comment.

  Evaluating result with confidence and margin of error

How large random sample of potential voters will be required to evaluate result with 95% confidence and with margin of error of plus and minus 3%?

  Concept of statistical signi cance

Concept of statistical signi cance

  Determine coefficient of correlation

Determine the coefficient of correlation between the two variables. Interpret the value.

  Probability based on a game of rolling a pair of dice

A game involving a pair of dice pays out $4 with probability 16/36, costs you $2 with probability 14/36, and costs you $6 with probability 6/36.

  Observational and sample study

A statistics instructor wants to know which route will get her to school the fastest. Each day from October 2 to November 15, when she gets to the turn point she checks the odometer on her car

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd