O Write the null and alternate hypotheses using appropriate symbols and indicate whether the hypothesis is left-tailed, right-tailed, or two-tailed a) A pollster wants to test the claim that less than 35% of Americans are worried about catching COVID-19. Null: Alternative: Tail: b) Servers at a certain restaurant chain worked an average of 15-hours per week in December 2020. We want to test if the mean number of hours worked per week has changed due to removal of capacity limits on restaurants.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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2) Write the null and alternate hypotheses using appropriate symbols and indicate whether
the hypothesis is left-tailed, right-tailed, or two-tailed
a) A pollster wants to test the claim that less than 35% of Americans are worried about
catching COVID-19.
Null:
Alternative:
Tail:
b) Servers at a certain restaurant chain worked an average of 15-hours per week in
December 2020. We want to test if the mean number of hours worked per week has
changed due to removal of capacity limits on restaurants.
Null:
Alternative:
Tail:
Transcribed Image Text:2) Write the null and alternate hypotheses using appropriate symbols and indicate whether the hypothesis is left-tailed, right-tailed, or two-tailed a) A pollster wants to test the claim that less than 35% of Americans are worried about catching COVID-19. Null: Alternative: Tail: b) Servers at a certain restaurant chain worked an average of 15-hours per week in December 2020. We want to test if the mean number of hours worked per week has changed due to removal of capacity limits on restaurants. Null: Alternative: Tail:
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