According to a Health of Boston report, female residents in Boston have a higher average life expectancy as compared to male residents (The Boston Globe, August 16, 2010). You collect the following sample data to test the following hypotheses at 0.01 level of significance: Ho: H1s H2 versus H1: H1> H2, where females represent group 1 and males represent group 2. Females Males Mean 81.1 74.8 Sample Size 32 32 Assume the population standard deviations of life expectancy are 8.2 and 8.6 for females and males, respectively. What is(are) the critical value(s)? Select one: O None of these are correct O 2.390 O +2.575 O 2.33 O +2.660

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According to a Health of Boston report, female residents in Boston have a higher
average life expectancy as compared to male residents (The Boston Globe, August 16,
2010). You collect the following sample data to test the following hypotheses at 0.01
level of significance: Ho: H1s H2 versus H1: H1 >H2, where females represent group 1 and
males represent group 2.
Females
81.1
Males
Мean
74.8
Sample Size
32
32
Assume the population standard deviations of life expectancy are 8.2 and 8.6 for
females and males, respectively. What is(are) the critical value(s)?
Select one:
O None of these are correct
2.390
O +2.575
O 2.33
O +2.660
Transcribed Image Text:According to a Health of Boston report, female residents in Boston have a higher average life expectancy as compared to male residents (The Boston Globe, August 16, 2010). You collect the following sample data to test the following hypotheses at 0.01 level of significance: Ho: H1s H2 versus H1: H1 >H2, where females represent group 1 and males represent group 2. Females 81.1 Males Мean 74.8 Sample Size 32 32 Assume the population standard deviations of life expectancy are 8.2 and 8.6 for females and males, respectively. What is(are) the critical value(s)? Select one: O None of these are correct 2.390 O +2.575 O 2.33 O +2.660
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