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# Statistics: Hypothesis testing, Correlation

See attached file.

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 &#57502;(&#956; , p ,&#57544;&#963;)&#57503; 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 &#57527;=0.05 .

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

#### Solution Preview

Please see the attachments.

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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