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