Purchase Solution

Hypothesis Testing Using Normal Distribution

Not what you're looking for?

Use the given claim to state a null and an alternative hypothesis. Identify which hypothesis represents the claim.

A. Claim: p < 0.205

B. Claim: p > 0.70

Test the claim about the population mean µ with a z-test using the given sample statistics and level of significance.

A. Claim: µ ? 0: a = 0.05. Statistics x = -0.69, s = 2.62, n = 60

B. Claim: µ = 7450: a = 0.05. Statistics x = 7512, s = 243, n = 57

Find the critical value(s) for the t-test with the indicated sample size n and level of significance.

A. Right-tailed test, n = 8, a = 0.01

B. Two-tailed test, n = 12, a = 0.05

Solution Summary

Hypothesis Testing Using Normal Distribution

Solution Preview

Z Test hypothesis tests are also explain in charts in Excel attachment .

Use the given claim to state a null and an alternative hypothesis. Identify which hypothesis represents the claim.
A. Claim: p < 0.205
Alternative hypothesis
B. Claim: p > 0.70

Null hypothesis

Test the claim about the population mean µ with a z-test using the given sample statistics and level of significance a.
A. Claim: µ ≠ 0: a = 0.05. Statistics x = -0.69, s = 2.62, n = 60

The null hypothesis tested is
H0: µ = 0
The alternative hypothesis is
H1: µ ≠ 0
The test statistic used is . Given that = -0.69, n = 60, σ = 2.62
Therefore, = -2.04

Rejection Criteria: Reject the null hypothesis, if the absolute value of test statistic is greater than the critical value of Z at the 0.05 significance level.
Critical value ...

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.