Question

Ho: μ = 1,000 Ha: μ ≠ 1,000 σ = 200, n = 100, $\bar{x}$ = 980, α = .01 a) What is the test statistic? (Carry answer to the nearest hundredths) b) What is the rejection region? (Carry answer to the nearest thousandths) c) What is the p-value? (Carry answer to the nearest ten-thousandths)

Name: ho 1000 ha 1000 200 n 100 barx 980 01 a what is the test statistic carry answer to the nearest hundredths b what is the rejection region carry answer to the nearest thousandths c what is the 86763
Uploaded: 2023-07-14T21:49:43-08:00
Duration: 2 min 17 s
Channel: Ana Carolina Da Cruz
Description: ho 1000 ha 1000 200 n 100 barx 980 01 a what is the test statistic carry answer to the nearest hundredths b what is the rejection region carry answer to the nearest thousandths c what is the 86763

          Ho: μ = 1,000
Ha: μ ≠ 1,000
σ = 200, n = 100, $\bar{x}$ = 980, α = .01
a) What is the test statistic? (Carry answer to the nearest hundredths)
b) What is the rejection region? (Carry answer to the nearest thousandths)
c) What is the p-value? (Carry answer to the nearest ten-thousandths)

ho 1000 ha 1000 200 n 100 barx 980 01 a what is the test statistic carry answer to the nearest hundredths b what is the rejection region carry answer to the nearest thousandths c what is the 86763

Added by Cody M.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Ana Carolina Da Cruz

07/14/2023

Step 1

01$ We need to perform a two-tailed z-test for the population mean. The test statistic is given by: $z = \frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}}}$ Plugging in the values, we get: $z = \frac{980 - 1000}{\frac{200}{\sqrt{100}}} = \frac{-20}{20} = -1$ The Show more…

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Ho: μ = 1,000 Ha: μ ≠ 1,000 σ = 200, n = 100, $\bar{x}$ = 980, α = .01 a) What is the test statistic? (Carry answer to the nearest hundredths) b) What is the rejection region? (Carry answer to the nearest thousandths) c) What is the p-value? (Carry answer to the nearest ten-thousandths)