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StatisticsQ&A LibraryControl GroupS26041060M10604fa)406060740604102060740(c)607A psychologist theorized that people can hear bettea large meal. Six individuals were randomly assignor a small meal. After eating the meal, their hearability scores (high numbers indicate greater abiling table. Using the .05 level, do the results suppo(a) Use the steps of hypothesis testing, (b) sketch t(c) explain your answers to someone who has nevBig Meal GroupHearingSmall Meal GroupSubjectHearingSubjectD19EВFCTwenty students randomly assigned to an experional program; 30 in a control group do not. Aft-on their knowledge. The experimental group hastimated population standard deviation of 3);with an estimated population standard deviathould the experimenter conclude? (a) Use the :e distributions involved, and (c) explain yourith the t test for a single sample but not with tstudy of the effects of color on easing amparticinants who completed the test print232222 3Question

Asked Oct 24, 2019

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a psychologist theorized that people can hear better when they have just eaten a large meal. six individuals were randomly assigned to eat either a large meal or a small meal. after eating the meal, their hearing ws tested. the hearing abiity scores (high numbers indicate greater ability) are given in the fllowing table. using the .05 level, do the results support the psychologists theory? a. use the steps of hypothesis testing, b. sketch the distributions involved, and c. explain your answers to someone who has never had a course in statistics.

Step 1

a.

The difference in the mean hearing score is statistically significant for group 1 with N_{1} = 3, group 2 with N_{2} = 3. The level of significance is 0.05.

The hypothesis is obtained below:

Null hypothesis:

*H _{0}: µ_{1}= µ_{2}*

Alternative hypothesis:

*Ha: µ _{1}≠ µ_{2}*

The value of mean and standard deviation for group 1 is obtained below:

The value of mean is,

Step 2

The value of standard deviation is,

Step 3

The value of mean and standard deviation for group 2 ...

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