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Preliminary Data Analyses Indicate That You Can Reasonably Consider the Assumptions

question 89

Essay

Preliminary data analyses indicate that you can reasonably consider the assumptions for using pooled t-proceduressatisfied. Perform the required hypothesis test by using either the critical-value approach or the P-value approach asindicated.
-A researcher was interested in comparing the amount of time spent watching television by women and by men. Independent simple random samples of 14 women and 17 men were selected, and each person was asked how many hours he or she had watched television during the previous week. The summary statistics are as follows.
 Women  Men x1=11.9x2=17.1 s1=4.1 s2=4.8n1=14n2=17\begin{array} { c | c } \text { Women } & \text { Men } \\ \overline { \mathrm { x } } _ { 1 } = 11.9 & \mathrm { x } _ { 2 } = 17.1 \\ \mathrm {~s} _ { 1 } = 4.1 & \mathrm {~s} _ { 2 } = 4.8 \\ \mathrm { n } _ { 1 } = 14 & \mathrm { n } _ { 2 } = 17 \end{array}
At the 5% significance level, do the data provide sufficient evidence to conclude that the mean time spent watching television by women is less than the mean time spent watching television by men? Use the critical-value approach.

Recognize the processes involved in extinction within operant conditioning.
Understand the differences and applications of punishment and negative punishment.
Comprehend the process and significance of shaping in operant conditioning.
Distinguish between the roles of discriminative stimuli in operant conditioning.

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