Question

A random sample of 21 students IQ scores have a mean score of 100.57 and a standard deviation of 6.78. Is there sufficient evidence to support the claim that this sample of students are greater than the average IQ of 98? Use a 0.10 significance level. The null and alternative hypothesis would be: $H_0: \mu \le 98$ $H_0: p \le 24.5$ $H_0: p = 24.5$ $H_0: p > 24.5$ $H_0: \mu = 98$ $H_0: \mu \ge 98$ $H_1: \mu > 98$ $H_1: p > 24.5$ $H_1: p \ne 24.5$ $H_1: p < 24.5$ $H_1: \mu \ne 98$ $H_1: \mu < 98$ The test is: two-tailed right-tailed left-tailed The test statistic is: (to 3 decimals) The p-value is: O greater than $\alpha$ O less than $\alpha$ Based on this we: O Reject the null hypothesis O Fail to reject the null hypothesis

          A random sample of 21 students IQ scores have a mean score of 100.57 and a standard deviation of 6.78.
Is there sufficient evidence to support the claim that this sample of students are greater than the average
IQ of 98? Use a 0.10 significance level.
The null and alternative hypothesis would be:
$H_0: \mu \le 98$  $H_0: p \le 24.5$  $H_0: p = 24.5$  $H_0: p > 24.5$  $H_0: \mu = 98$  $H_0: \mu \ge 98$
$H_1: \mu > 98$  $H_1: p > 24.5$  $H_1: p \ne 24.5$  $H_1: p < 24.5$  $H_1: \mu \ne 98$  $H_1: \mu < 98$
The test is:
two-tailed right-tailed left-tailed
The test statistic is:
(to 3 decimals)
The p-value is:
O greater than $\alpha$
O less than $\alpha$
Based on this we:
O Reject the null hypothesis
O Fail to reject the null hypothesis

A random sample of 21 students IQ scores have a mean score of 100.57 and a standard deviation of 6.78.
Is there sufficient evidence to support the claim that this sample of students are greater than the average
IQ of 98? Use a 0.10 significance level.
The null and alternative hypothesis would be:
H0: μ≤ 98 H0: p ≤ 24.5 H0: p = 24.5 H0: p > 24.5 H0: μ = 98 H0: μ≥ 98
H1: μ > 98 H1: p > 24.5 H1: p 24.5 H1: p < 24.5 H1: μ 98 H1: μ < 98
The test is:
two-tailed right-tailed left-tailed
The test statistic is:
(to 3 decimals)
The p-value is:
O greater than α
O less than α
Based on this we:
O Reject the null hypothesis
O Fail to reject the null hypothesis

Added by Anthony S.

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