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Input interpretation:

z-test for a population mean


Input values:

hypothesized mean | 0\nsample size | 40\nstandard deviation | 1\nsample mean | 0.2\ntest type | right-tailed test


Null hypothesis:

mu = 0


Alternative hypothesis:

mu > 0


Test statistic:

1.26491


p‐value:

0.103


Test conclusions:

null hypothesis is not rejected at 1% significance level\nnull hypothesis is not rejected at 5% significance level\nnull hypothesis is not rejected at 10% significance level


Assumptions:

assuming a simple random sample drawn from a normally distributed population

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