The population is normally distributed with a standard deviation of 5.8. A random sample of 58 individuals has a mean of

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answerhappygod
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The population is normally distributed with a standard deviation of 5.8. A random sample of 58 individuals has a mean of

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The population is normally distributed with a standard deviation of 5.8. A random sample of 58 individuals has a mean of 47.2. The hypotheses are:
H0: u = 48
Ha: u does not equal 48
a) identify whether the test statistic if z or t, and calculate it
b) find the p-value
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