You wish to test the following claim (Ha) at a significance level of=0.10

Ho:=64.3

Ha:>64.3

You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data:

data

74.4

71.9

65.8

79.1

76.9

78.7

82.8

72.7

80.8

82

73

79.9

What is the critical value for this test? (Report answer accurate to three decimal places.)

critical value =

What is the test statistic for this sample? (Report answer accurate to three decimal places.)

test statistic =

The test statistic is...

• in the critical region
• not in the critical region

This test statistic leads to a decision to...

• reject the null
• accept the null
• fail to reject the null

As such, the final conclusion is that...

• There is sufficient evidence to warrant rejection of the claim that the population mean is greater than 64.3.
• There is not sufficient evidence to warrant rejection of the claim that the population mean is greater than 64.3.
• The sample data support the claim that the population mean is greater than 64.3.
• There is not sufficient sample evidence to support the claim that the population mean is greater than 64.3.