An automotive part must be machined to close tolerances to be acceptable to customers. production specifications call for a maximum variance in the lengths of the parts of .0004. suppose the sample variance for 30 parts turns out to be s 2 = .0005. use = .05 to test whether the population variance specification is being violated.
state the null and alternative hypotheses.
h0 : σ2
ha : σ2
calculate the value of the test statistic (to 2 decimals).
the p-value is what is your conclusion?

Ineed or else im in trouble need a random sample of 240 park users were asked if they go to the park more often on weekdays or on the weekend. the results are shown in the table. weekdays weekend male (50) (10) female (150) (30) based on the data in the table, select correct or incorrect for each statement. correct or incorrect 1.the males go to the park more often on the weekend. 2.the females go to the park more often on weekdays. 3.for the participants in the survey, gender affects which days of the week a person goes to the park.

G(x) = 2 sin(2x - π) + 4. using complete sentences, explain how to find the minimum value for the function.

Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}