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True or False? Small Sample Mean Problem. A study was done to determine the effect of...

Question

True or False? Small Sample Mean Problem. A study was done to determine the effect of...

Small Sample Mean Problem. A study was done to determine the effect of vitamin supplements for the mother on the birth weight

True or False?

Small Sample Mean Problem. A study was done to determine the effect of vitamin supplements for the mother on the birth weight of babies. The sample size was 17. All the women in the study regularly visited a doctor during their pregnancy. The data below show the summary statistics and a stem and leaf plot of the birth weight of the 17 babies. Weight is in kilograms (kg). Stem Leaf 247 2*154 3 02 22 39 43 3*52 68 73 73 4 09 13 33 37 4* 47 68 5 14 in kg, stem is whole number 247 is 2.47 Mean Median Variance Std Dev су Count 3.761 3.730 0.531 0.729 19.380 17 The average weight of all babies from women receiving regular care during pregnancy in the region of the study was 3.40 kg. (treat this as if it is the population value). If we conducted a hypothesis test to determine if the sample was different from the regional average of 3.40 with an alpha = .05, we would Fail to Reject the Null Hypothesis.

Answers

From the given information,

Test statistic=2.0418

Critical value=2.120

As test statistic < critical value

We accept Null hypothesis.

i.e., Fail to Reject the null hypothesis.

Hence,

Given statement True.

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