A fundraiser is offering a small gift to people making a donation. The donor can choose one of four gifts: a mug, a t-shirt, a plush toy, or a water bottle. The fundraiser would like to know if any of the gifts were more or less popular or were they equal in preference. The data for n = 40 donors are below: Assuming all choices would be equally likely to be chosen, what would be the expected frequency (fe) for all groups?O 40O 25O 10O 13.2QUESTION 4Calculate chi-square (x)O 12O 3O 6.4O 40QUESTION 5What is the statistical decision that should be made from these data?O fail to reject the null, there is not a significant preference for one or more giftsO fail to reject the null, there is a significant preference for one or more giftsO reject the null, there is not a significant preference for one or more giftsO reject the null, there is a significant preference for one or more gifts A fundraiser is offering a small gift to people making a donation. The donor can choose one of four gifts: a mug, a t-shirt, a plush toy, or a water bottle. Thefundraiser would like to know if any of the gifts were more or less popular or were they equal in preference. The data for n = 40 donors are below:MugT-ShirtToyBottle61812Calculate the degrees of freedom (df) for chi-square.O 39О 36O9QUESTION 2Using an a = .05, what is the critical value for chi-square (xcrit)?O 7.81O 12.84O 55.76O 9.49QUESTION 3Assuming all choices would be equally likely to be chosen, what would be the expected frequency (fe) for all groups?O 40O 25O 10O 13.2

The data shows four gifts with a mug, a t-shirt, a plush toy, and a water bottle.

A fundraiser is offering a small gift to people making a donation. The donor can choose one of four gifts: a mug, a t-shirt, a plush toy, or a water bottle. The fundraiser would like to know if any of the gifts were more or less popular or were they equal in preference. The data for n = 40 donors are below: Mug T-Shirt Toy Bottle 6 18 12 4

A fundraiser is offering a small gift to people making a donation. The donor can choose one of four gifts: a mug, a t-shirt, a plush toy, or a water bottle. The fundraiser would like to know if any of the gifts were more or less popular or were they equal in preference. The data for n = 40 donors are below: Mug T-Shirt Toy Bottle 6 18 12 4

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

A fundraiser is offering a small gift to people making a donation. The donor can choose one of four gifts: a mug, a t-shirt, a plush toy, or a water bottle. The
fundraiser would like to know if any of the gifts were more or less popular or were they equal in preference. The data for n = 40 donors are below:
Mug
T-Shirt
Toy
Bottle
6
18
12
Calculate the degrees of freedom (df) for chi-square.
O 39
О 36
O9
QUESTION 2
Using an a = .05, what is the critical value for chi-square (xcrit)?
O 7.81
O 12.84
O 55.76
O 9.49
QUESTION 3
Assuming all choices would be equally likely to be chosen, what would be the expected frequency (fe) for all groups?
O 40
O 25
O 10
O 13.2

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