National data indicates that 40% of households own a desktop computer. In a random sample of...
National data indicates that 40% of households own a desktop computer. In a random
sample of 570 households, 35% owned a desktop computer. Does this provide enough
evidence to show a difference in the proportion of households that own a desktop?
Identify the appropriate null and alternative hypotheses.
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National data indicates that 40% of households own a desktop
computer. In a random
sample of...
A humane society claims that less than 35% of U.S. households own a dog. In a...
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It is believed that nearsightedness affects about 8% of all children. In a random sample of 194 children, 21 are nearsighted (a) Construct hypotheses appropriate for the following question: do these data provide evidence that the 8% value is inaccurate? Ho: p= .08 Ha:p*.08 Ho: p= .08 Ha:p<.08 Ho: p= .08 Ha:p>.08 (b) What proportion of children in this sample are nearsighted? (round to four decimal places) (c) Given that the standard error of the sample proportion is 0.0195 and...
It is believed that nearsightedness affects about 8% of all children. In a random sample of 194 children, 21 are nearsighted. (a) Construct hypotheses appropriate for the following question: do these data provide evidence that the 8% value is inaccurate? ОНо: р 3D.08 На: р 2 .08 Ho: p .08 На: р < .08 Ho: p .08 На: р > .08 (b) What proportion of children in this sample are nearsighted? (round to four decimal places) (c) Given that the...
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