An indeperident consumer group states that, among all people with depr use proportion P depression is 80%. A random sample of 215 patients who use the drug is selected, and 175 of them find relief from depression. Based on these data, can we reject the consumer group's claim at the 0.1 level of significance? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) |(a) State the null hypothesis Ho and the alternative hypothesis H1. H. :0 H, :0 |(b) Determine the type of test statistic to use. (Choose one) ▼ D=0 OSO |(c) Find the value of the test statistic. (Round to three or more decimal places.) O

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An independent consumer group states that, among all people with depression who use a new antidepressant, the proportion p of people who find relief from
depression is 80%. A random sample of 215 patients who use the drug is selected, and 175 of them find relief from depression. Based on these data, can we
reject the consumer group's claim at the 0.1 level of significance?
Perform a two-tailed test. Then complete the parts below.
Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of
formulas.)
(a) State the null hypothesis H, and the alternative hypothesis H,.
H :0
H :U
On
(b) Determine the type of test statistic to use.
(Choose one) ▼
OSO
(c) Find the value of the test statistic. (Round to three or more decimal places.)
O<O
(d) Find the two critical values. (Round to three or more decimal places.)
Iand
(e) Can we reject the claim that the proportion of people who find relief from
depression using the new antidepressant is 80%?
O Yes ONo
to
Transcribed Image Text:An independent consumer group states that, among all people with depression who use a new antidepressant, the proportion p of people who find relief from depression is 80%. A random sample of 215 patients who use the drug is selected, and 175 of them find relief from depression. Based on these data, can we reject the consumer group's claim at the 0.1 level of significance? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis H, and the alternative hypothesis H,. H :0 H :U On (b) Determine the type of test statistic to use. (Choose one) ▼ OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) O<O (d) Find the two critical values. (Round to three or more decimal places.) Iand (e) Can we reject the claim that the proportion of people who find relief from depression using the new antidepressant is 80%? O Yes ONo to
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