On the Navajo Reservation, a random sample of 220 permanent dwellings in the Fort Defiance region showed that 66 were traditional Navajo hogans. In the Indian Wells region, a random sample of 153 permanent dwellings showed that 18 were traditional hogans. Let p1 be the population proportion of all traditional hogans in the Fort Defiance region, and let p2 be the population proportion of all traditional hogans in the Indian Wells region. (a) Find a 90% confidence interval for p1 – p2. (Use 3 decimal places.) lower limit   upper limit

Construct a 95% confidence interval for p1 - p2 for a survey that finds 30% of 240 males and 41% of 200 females are opposed to the death penalty. Group of answer choices a.(-0.200, -0.021) b.(-1.532, 1.342) c.(-1.324, 1.512) d.(-0.561, 0.651)

In a one-way analysis of variance with three treatments, each with five measurements, in which a completely randomized design is used, what is the degrees of freedom for treatments?  a. 5 b. 2 c. 4 d. 8

The Salesforce company of a unicorn has various clients associated .The company wants to estimate the proportion of its clients who are associated with more than one company. A random sample of 600 clients is selected without replacement and 125 say that they are associated with more than one company .a. Construct a 99% confidence interval estimate of the population proportion of the clients who have been associated with more than one company

Ten engineering schools in a country were surveyed. The sample contained 225electrical​ engineers, 80 being​ women; 175 chemical​ engineers, 40 being women. Compute a 90​% confidence interval for the difference between the proportions of women in these two fields of engineering. Is there a significant difference between the two​ proportions?   Let p1 be the population proportion of electrical engineers that are women in the schools that were surveyed and let p2 be the population proportion of chemical engineers that are women in the schools that were surveyed.   The 90​% confidence interval is nothing<p1−p2<nothing. ​(Round to three decimal places as​ needed.)

A sample of 153 was selected from a large population. 69% of the sample had a characteristic of interest. Calculate a 99% confidence interval estimate for the proportion of the population with the characteristic.

On the Navajo Reservation, a random sample of 228 permanent dwellings in the Fort Defiance region showed that 68 were traditional Navajo hogans. In the Indian Wells region, a random sample of 151 permanent dwellings showed that 25 were traditional hogans. Let p₁ be the population proportion of all traditional hogans in the Fort Defiance region, and let pa be the population proportion all traditional hogans in the Indian Wells region. USE SALT (a) Find a 99% confidence interval for p₁ - P₂. (Use 3 decimal places.) lower limit upper limit (b) Examine the confidence interval and comment on its meaning. Does it include numbers that are all positive? I negative? mixed? What if it is hypothesized that Navajo who follow the traditional culture of their people tend to occupy hogans? Comment on the confidence interval for P₁ P₂ in this context. O Because the interval contains only positive numbers, we can say that there is a higher proportion of hogans in the Fort Defiance region. O Because the…

A sample of 164 was selected from a large population. 66% of the sample had a characteristic of interest. Calculate a 90% confidence interval estimate for the proportion of the population with the characteristic.

On the Navajo Reservation, a random sample of 220 permanent dwellings in the Fort Defiance region showed that 68 were traditional Navajo hogans. In the Indian Wells region, a random sample of 137 permanent dwellings showed that 21 were traditional hogans. Let p1 be the population proportion of all traditional hogans in the Fort Defiance region, and let p2 be the population proportion of all traditional hogans in the Indian Wells region.   (a) Find a 99% confidence interval for p1 – p2. (Use 3 decimal places.)lower limit =upper limit=

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