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Statistics: Hypothesis testing, Correlation

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Hypothesis Testing

Examine the given statement, then express the null hypothesis H0 and alternative hypothesis H1 in symbolic form. Be sure to use the correct symbol (μ , p ,σ) for the indicated parameter.

1. The majority of college students own a vehicle.

2. The standard deviation of daily rainfall amounts in San Francisco is 0.66 cm.

Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis).

3. The test statistic in a right-tailed test is z = 2.50

4. The test statistic in a two-tailed test is z = - 0.55

Correlation
CPI 30.2 48.3 112.3 162.2 191.9 197.8
Cost of Pizza 0.15 0.35 1 1.35 1.5 2

1. Find the value of the correlation coefficient, r.

2. Find the critical value of r from Table A-6 using =0.05 .

3. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables.

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Hypothesis Testing

Examine the given statement, then express the null hypothesis H0 and alternative hypothesis H1 in symbolic form. Be sure to use the correct symbol (μ , p ,σ) for the indicated parameter.

Answers

1. The majority of college students own a vehicle.

H0: p ≤ 0.5
H1: p > 0.5

2. The standard deviation of daily rainfall amounts in San Francisco is 0.66 cm.

H0: σ = 0.66
H1: σ ≠ 0.66

Use the given ...

Solution Summary

Hypothesis testing correlations in statistics is examined.

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