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Author Question: For a one-tailed (upper tail) hypothesis test with a sample size of 18 and a .05 level of ... (Read 153 times)

roselinechinyere27m

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on: Jun 24, 2018
For a one-tailed (upper tail) hypothesis test with a sample size of 18 and a .05 level of significance, the critical value of the test statistic t is
 a. 1.645.
   b. 1.734.
   c. 1.740.
   d. 2.110.

Question 2

From a population of size 600, a simple random sample of size 58 is selected. The sample mean is 400, and the sample standard deviation is 40. An approximate 95 confidence interval for the population mean is
 a. 395 to 405
  b. 380 to 420
  c. 360 to 440
  d. 390 to 410


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AngeliqueG

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Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

d


roselinechinyere27m

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Reply 2 on: Jun 24, 2018
Gracias!

sultansheikh

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Reply 3 on: Yesterday
Wow, this really help

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