Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t/2, (b) find the critical value z,12, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n = 294, x = 29.4 hg, s = 6.4 hg. The confidence level is 95%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. ta/2= (Round to two decimal places as needed.) O B. Za/2=L (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies.

Assume that we want to construct a confidence interval. Do one of the​ following, as​ appropriate: (a) find the critical value tα/2​, ​(b) find the critical value zα/2​, or​ (c) state that neither the normal distribution nor the t distribution applies.   Here are summary statistics for randomly selected weights of newborn​ girls: n=218​, x=28.6 ​hg, s=6.6 hg. The confidence level is 99​%.       Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.     A. tα/2=enter your response here ​(Round to two decimal places as​ needed.)   B. zα/2=enter your response here ​(Round to two decimal places as​ needed.)   C. Neither the normal distribution nor the t distribution applies.

Assume that we want to construct a confidence interval. Do one of the following, as approp itical value t,/22 (b) find the critical value za/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n = 279, x= 30.3 hg, s = 7.2 hg. The confidence level is 95%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. ta/2= (Round to two decimal places as needed.) В. Za/2 = (Round to two decimal places as needed.) O c. Neither the normal distribution nor the t distribution applies.

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t,/2. (b) find the critical value za/2. or (c) state that neither the normal distribution nor the t distribution applies. The confidence level is 90%, a= 3710 thousand dollars, and the histogram of 59 player salaries (in thousands of dollars) of football players on a team is as shown. ó 4000 8000 12000 16000 2000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. /2= (Round to two decimal places as needed.) O B. Za/2= (Round to two decimal places as needed.) OC. Neither the normal distribution nor the t distribution applies.

Assume that we want to construct a confidence interval. Do one of the​ following, as​ appropriate: (a) find the critical value tα/2​, ​(b) find the critical value zα/2​, or​ (c) state that neither the normal distribution nor the t distribution applies.   Here are summary statistics for randomly selected weights of newborn​ girls: n=167​, x=28.2 ​hg, s=6.2 hg. The confidence level is 95​%. Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.     A. tα/2=   nothing ​(Round to two decimal places as​ needed.)   B. zα/2=   nothing ​(Round to two decimal places as​ needed.)   C. Neither the normal distribution nor the t distribution applies.

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value ta/2. (b) find the critical value za/2. or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n=D156, x 29.3 hg, s = 7.7 hg. The confidence level is 90%.

Tina catches a 14-pound bass.  She does not know the population mean or standard deviation.  So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds.  Find the t and calculate a 95% (α = .05) confidence interval.

Assume that we want to construct a confidence interval. Do one of the​ following, as​ appropriate: (a) find the critical value tα/2​,​(b) find the critical value zα/2​, or​ (c) state that neither the normal distribution nor the t distribution applies.   The confidence level is 95​%, σ=3527 thousand​ dollars, and the histogram of 51 player salaries​ (in thousands of​ dollars) of football players on a team is as shown.   Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice. A. tα/2=____ ​(Round to two decimal places as​ needed.)   B. zα/2=_____(Round to two decimal places as​ needed.)   C.Neither the normal distribution nor the t distribution applies.

A statistics class is estimating the mean height of all female students at their college. They collect a random sample of 42 female students and measure their heights. The mean of the sample is 65.3 inches and the sample standard deviation is 5.4 inches. Find the 90% confidence interval for the mean height of all female students in their school? Assume that the distribution of individual female heights at this school is approximately normal. 1. The t value is 1.3025 2. The standard error has a value of -- 3. The margin of error has a value of 4. Find the 90% confidence interval for the mean height of all female students in their school

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value to/2, (b) find the critical value Zα/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n = 286, x = 33.3 hg, s = 6.4 hg. The confidence level is 95%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. ta/2= B. (Round to two decimal places as needed.) Za/2 = (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies.