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

  What is the probability that the number is a multiple

Fifty raffle tickets are numbered 1 throughout 50, and one of them is drawn at random. What is the probability that the number is a multiple of 5 or 8? Consider the following "solution": Since 10 tickets bear numbers that are multiples of 5 and 6 ..

  Coin biased toward heads

At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.

  Bar chart and expected frequencies for each class

Advertisers need to know which age groups are likely to see their ads. Purchasers of 120 copies of Cosmopolitan are shown by age group, (a) Make a bar chart and describe it. (b) Calculate expected frequencies for each class.

  Estimating sample size-population mean

What sample size must you take to be 96% confident that the results will be within $.75 of the true mean cost per call?

  Finding of sample size for population mean

How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?

  Linear programming models

LINEAR PROGRAMMING MODELS

  Confidence interval and population proportion

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

  Multiple linear regression equation using mega stats

Use MegaStat's output for multiple regression to determine the multiple regression equation

  Evaluating proportion of costs using empirical rule

Use empirical Rule to evaluate proportion of costs within 2 standards deviations of mean. Write down these limits.

  Romance usa presentbooks sold are of romance genre

Romance USA present reported that 11 percent of all books sold are of the romance genre. If a local bookstore sells 316 books on a given day

  Confidence interval for the mean daily caloric intake

Find a 95% confidence interval for the mean daily caloric intake. Interpret this interval.

  To make a p-chart for the nonconforming units

To make a p-chart for the nonconforming units. The coating of the candy bar is currently make by a process which can result in surface cracking.

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