Calculate the test statistic value for population mean

Assignment Help Basic Statistics
Reference no: EM1321479

A recent survey indicated that the average amount spent for breakfast by business managers was $7.58 with a standard deviation of $0.42. It was felt that breakfasts on the West Coast were higher than $7.58. A sample of 81 business managers on the West Coast had an average breakfast cost of $7.65. 13. At a = 0.05, what is the test value?

a. -1.5

b. 1.96

c. 1.64

d. 1.5

Reference no: EM1321479

Questions Cloud

Knowledge of age score account for in competence scores : How much variation does knowledge of Age Score account for in Competence Scores?
Probability of two mutually exclusive events : Probability of two mutually exclusive events intersecting Can be any value between 0 to 1, Must always be equal to 1.
Java program to declare an integer array and initializing it : Write down a complete Java program that declares an integer array, intArray, and initialize it to {1, 2, 3, 4, 5, 6, and 7}. The program must have the following methods:1) void displayOddPositions (). This method displays array elements in the odd..
Assume that the central bank of an economy : Assume that the central bank of an economy contracts the money supply.
Calculate the test statistic value for population mean : A sample of 81 business managers on the West Coast had an average breakfast cost of $7.65. 13. At a = 0.05, what is the test value?
Components of the hawthorne study : Describe how the components of the Hawthorne study are incorporated in current human resource functions? What was the main idea behind this study?
What two variables have the strongest positive strength : What two variables have the strongest positive strength of relationship?
Roy rogers the lead broker : Roy Rogers the lead broker at C-U Broke is interested in identifying whether there is a difference
Current attitude toward the company : Describe an ineffective electronic marketing email, text message, or pop-up ad you have received. Why was the selected message ineffective? What was your reaction to it? What is your current attitude toward the company?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Homogeneity of variance test

The populations must all be normally distributed, what is meant by normally distributed?

  Joint-marginal-conditional probability

Find the probability that an eligible voter selected at random will have the following characteristics.

  Determining confidence interval for the mean number

Find a 98% confidence interval for the mean number of days required for successful completion of physical therapy for patients in the average group. Discuss the results.

  Stocks value at its highest

What is the stock's value at it's highest on 15 days of the year? (Assume that there are 240 trading days in a year).

  What conclusion can be made from this study

It has been claimed that women live longer than men; however, men tend to be older than their wives. Ages of sixteen husbands and wives from England were obtained. The null hypothesis of equality of means is rejected. What conclusion can be made f..

  Sensitivity of minimum sample size to actual proportion

Inspect table produced in question 2 above. Comment on relative sensitivity of minimum sample size to actual proportion and to desired half width.

  Determining mean of money withdrawn from atms

If random sample of thirty six customer transactions points out that sample mean withdrawal amount is $172, is there evidence to think that population mean withdrawal amount is no longer $160? Determine the mean of data above?

  Normal distribution curve

Find the area under the normal distribution curve between z = 1.52 and z = 2.43.

  Findout the normal model for the given proportions

Findout the normal model for the given proportions. The professor has every student toss a coin 50 times also calculated the proportion

  Draw a sample size from normal distribution

How large a sample is required if the 97 percent level of confidence is used and the estimate is to be within $2,500? The standard deviation is $16,000.

  What are independent variable and dependent variables

Katie is studying aggression among adolescent girls. She believes that there is a relationship between the level of interaction a girl has with her mother and her level of aggression.

  Determining z values

Find out z values for 29 and 34 hours. What percent of garages take between 32 hours and 34 hours to erect?

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